write the electron dot structure of ethane

(a) Name the reaction which is usually used in the conversion of vegetable oils to fats. (i) in terms of molecular mass ? Alcohols What is this homologous series ? (e) Propanone, CH3-CO-CH3, Lakhmir Singh Chemistry Class 10 Solutions Page No:262. (a) (i) Ammonium Ethane is an alkane with a molecular formula of C2H6. (i) It leads to the formation of soot which is nothing but unburnt carbon which pollutes the atmosphere, blackens cooking utensils. (c) The next higher homologue of ethane is……….. (b) Y is butanoic acid, C3H7COOH Solution : ** Figure shows Lewis structures and molecular models for Methane and Ethane. Chloromethane – CH3Cl and methanol – CH3OH, Lakhmir Singh Chemistry Class 10 Solutions Page No:242, Question 39: (b) Why is diamond used for making cutting tools (like glass cutters) but graphite is not ? Name the black substance of pencil. Name the functional group of organic compounds that can be hydrogenated. Question 45: (b) The sodium salt of a long chain fatty acid is called……………….. Give the name of each series. H2SO4 at 170oC. formula of butane is C4H10; Its isomers are n-butane Which of the following will give brisk effervescence with sodium hydrogencarbonate and why ? Answer. (a) CH3OH ethyne dot structure ethyne electron dot structure ethyne lewis dot structure. Question 31: (i) CH3CHO (ii) CH3CH2COOH (iii) CH3COCH3 (iv) CH3CH2CH2OH Solution : (b) Write a chemical equation for the reaction involved. Example: Methane (CH4) and ethane (C2H6) (a) (i) Single bond: Methane, CH4. The addition of hydrogen to an unsaturated hydrocarbon to obtain a saturated hydrocarbon is called hydrogenation. (c) when one H atom of C3H8 is replaced by a CHO group. (a) What is buckminsterfullerene ? Question 37: Solution: 17. (a) Write two points of difference in the structures of diamond and graphite. Solution : Question 36: Question 25: (a) Why does the element carbon from a large number of carbon compounds ? Question 13: (l) Ethyne. Solution : (ii) Chloroethane – C2H5Cl Question 33: (a) What happens when carbon burns in air ? Solution : Solution : Question 35: (b) (i) All the members of the homologous series can be represented by the same general formula. (iii) CnH2n-2 (c) Due to its rigid structure, diamond is the hardest known substance to man. Question 5: Group A : CH3COOH, CH3CHO, CH3OH C4H8 (a) A soap is the sodium salt (or potassium salt) of a long chain carboxylic acid (fatty acid) which has cleansing properties in water. Expert Answer . (b) Which compound contains a carboxyl group ? Explain why, ethene decolourises bromine water whereas ethane does not. (a) Giving their structures, state the number of single bonds, double bonds and triple bonds (if any) in the following compounds : They are quite unreactive hence they undergo substitution reaction with chlorine in presence of sunlight. (e) Carboxylic acids, Question 26: (i) Aldehyde group (ii) Alcohol group (iii) Carboxylic acid group (iv) Halo group (b) Write three common functional groups present in organic compounds. Write the names and structural formulae : (b) C2H5OH; Alcohol forms ethene, C2H4 (ii) X (coal) C C4H8O Methanol, Question 4: Solution : (c) Propanal; it belongs to homologous series of aldehydes. (b) A carboxylic acid reacts with sodium hydrogencarbonate to give brisk effervescence of carbon dioxide gas but an alcohol does not react with sodium hydrogencarbonate. ** The shape of methane is tetrahedral and all H-C-H bond angles are 109.5°. Ethene decolourises bromine water because ethene is an alkene. (c) When soap is used for washing clothes with hard water, a large amount of soap in water is reacting with the calcium and magnesium ions of hard water to form an insoluble precipitate called scum, before it can be used for the real purpose of washing. HCHO, C2H5OH, C2H6, CH3COOH, C2H5C1 (b) CH3COOH and HCOOH can turn blue litmus solution red. Each carbon atom in a graphite layer is joined to other three carbon atoms by strong covalent bonds to form flat hexagonal rings. The isomer A is a liquid which is used as a solvent for nail polish. Question 36: (iii) Chloropropane – C3H7Cl Which of the following compounds can have a triple bond ? (b) A diamond crystal is a giant molecule of carbon atoms. (ii) Alkene, Question 7: (b) (i) Aldehyde group Disadvantages of incomplete combustion: (b) Describe the structure of graphite with the help of a labelled diagram. (a) Sodium metal test: Add a small piece of sodium metal to the organic liquid (to be tested), taken in a dry test tube. Lakhmir Singh Chemistry Class 10 Solutions Carbon and Its Compounds Notes, RD Sharma Class 11 Solutions Free PDF Download, NCERT Solutions for Class 12 Computer Science (Python), NCERT Solutions for Class 12 Computer Science (C++), NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 12 Micro Economics, NCERT Solutions for Class 12 Macro Economics, NCERT Solutions for Class 12 Entrepreneurship, NCERT Solutions for Class 12 Political Science, NCERT Solutions for Class 11 Computer Science (Python), NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 11 Entrepreneurship, NCERT Solutions for Class 11 Political Science, NCERT Solutions for Class 11 Indian Economic Development, NCERT Solutions for Class 10 Social Science, NCERT Solutions For Class 10 Hindi Sanchayan, NCERT Solutions For Class 10 Hindi Sparsh, NCERT Solutions For Class 10 Hindi Kshitiz, NCERT Solutions For Class 10 Hindi Kritika, NCERT Solutions for Class 10 Foundation of Information Technology, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 9 Foundation of IT, PS Verma and VK Agarwal Biology Class 9 Solutions, Lakhmir Singh Chemistry Class 10 Solutions Carbon and Its Compounds, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, Periodic Classification of Elements Class 10, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. (a) What are materials, X, Y and Z ? (a) Explain the process of preparation of soap in laboratory. Solution: Ethane is the IUPAC name for C 2 H 6. Conclusion. Solution : Question 17: Give IUPAC names of the following compounds : 14. Alkanes: Write the molecular formula of the following compounds and draw their electron-dot structures : (Foreign 2015) (i) Ethane (ii) Ethene (iii) Ethyne Answer: Question 25. (d) Give one example of a hydrocarbon, other than pentane, having more than three isomers. (a) X is butanol, C4H9OH (i) Propanone (b) (i) Chloromethane – CH3Cl (a) Carbon forms a large number of carbon compounds because carbon atoms can link with one another by means of covalent bonds to form long chains of carbon atoms. This incomplete combustion of wax produces small unburnt carbon particles. Question 24: Question: Write Out Lewis Dot Structures (note Name, Angle, Polarity Of Molecule), Hybridization Diagrams And Orbital Overlap Sketched Of Ethane, Ethene, And Ethyne (include Name Of Hybridization) This problem has been solved! (e) Allotropes of X: Diamond and buckminsterfullerene. Zigya App. Solution : (d) Alkanes: CH4, C2H6, C4H10? Name one detergent. (a) Define a homologous series. (a) Chloropropane, CH3-CH2-CH2-Cl A colourless organic liquid X of molecular formula C2H402 turns blue litmus to red. (a) Which compound contains an alcohol group ? (a) Write the formula of the functional group present in carboxylic acids. Question.27 Draw the structure of butanone molecule, CH 3 COC 2 H 5. Solution : (e) How many isomers of the following hydrocarbons are possible ? (f) Which allotrope is used in making anode of a dry cell ? Solution : (d) Name one use of allotrope Y (other than lubrication and pencil leads) Solution : (b) Gas B: Carbon dioxide (c) Allotrope B: Graphite (a) A homologous series is a group of organic compounds having similar structures and similar chemical properties in which the successive compounds differ by CH2 group. C5H8. Will a micelle be formed in other solvents like ethanol also ? Write the name of another member of this homologous series. Write the name of another member of this homologous series. (b) Due to its softness, powdered graphite can be used a lubricant whereas diamond being extremely hard can not be used as lubricant. Carboxylic acid group, -COOH gives brisk effervescence with NaHCO3. Describe a test for carboxylic acids. Alcohol group; On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet smell is formed. Solution : (b) Which formula represents benzene ? (ii) 2-methylbutane (e) C What is the common name of methanal ? It has to be remembered that this is not an ion, the atoms are all covalently bonded, the electrical charges show how the charges get polarized in the group. Solution : (d) State another use of allotrope C (other than in glass cutters). A C4H8O2 (e) Which compound is a constituent of vinegar ? Which of the following molecule is called buckminsterfullerene ? (iv) A sweet smell is obtained indicating the formation of an ester. Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula. Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids. These solid carbon particles rise in the flame, get heated and glow to give out yellowish light. Ethane is one of the alkanes, which and thus it is a saturated carbon compound which means it has all single bonds. Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Solution : Question 34: Solution : Homologous series of alkanes: Methane, CH4; Ethane, C2H6; Propane, C3H8; Butane, C4H10; Pentane, C5H12 C2H5OH and CH3COOH react in the presence of conc. CH3COOH, CH3CH2OH Question 9: Also write the chemical equation of the reaction involved. Answer: Question 5. Question 13: (c) Why have detergents replaced soap as a washing agent ? Isopentane and neopentane. With the help of a suitable example, explain the process of hydrogenation, mentioning the conditions of the reaction and any one change in physical property with the formation of the product. Solution : Question 32: (c) What is compound B ? Example: Chlorine (Cl), Bromine (Br), Oxygen (O) (d) Diamonds are used for making jewellery. (a) What is compound X ? Identify the functional group present in the following compound and name it according to IUPAC system : (c) What type of reaction occurs when A is converted into B ? Solution : (a) The process of burning of a hydrocarbon in the presence of air to give CO2, H2O, heat and light is known as……… It is made up of carbon. Ethanol (C2H5OH), Question 3: Solution 23 Match. (c) Denatured alcohol is ethyl alcohol which has been made unfit for drinking purposes by adding small amounts of poisonous substances like methanol, pyridine, copper sulphate etc. (d) State any two uses of graphite. Name any one natural source of organic compounds that are hydrogenated. C5H10; C6H12 (b) Why are carbon and its compounds used as fuels for most applications ? (e) Name two other allotropes of element X. Alkynes: Then add 5 to 10 grams of common salt (sodium chloride). Question 20: Hence, it is used in rock drilling equipments but graphite is soft and hence not used in rock drilling equipments. n-butane and iso-butane. Solution : With four single bonds, carbon has a tetrahedral structure, while with one double bond it's structure is trigonal planar, and with a triple bond it has a linear structure. Question 31: (b) 14 u Name two elements which exhibit the property of catenation. (c) Hydrocarbons (c) How would you name the following compound ? (ii) Butanone, Lakhmir Singh Chemistry Class 10 Solutions Page No:240, Question 10: (a) C4H9COOC2H5; Ester Question 4: Question 19: Activity: Take a boiling tube and put about 0.5 g of sodium carbonate in it. (a) How does ethanoic acid react with sodium hydrogencarbonate ? You are given an organic compound having the molecular formula C2H8. Solution : (b) What is saponification ? Solution : What does it show ? (b) What is hydrogenation ? (a) CH3COOH is a c arboxylic acid. These are used in cold drinks, ice-creams, sweets and perfumes. Two organic compounds A and B have the same molecular formula C6H12. (c) Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity ? Fifth member: C5H12, Question 27: Write the equation of the reaction which takes place. Solution : Question 37: Solution : Complete and balance the following equations : HARD. (ii) Which material ultimately burns without producing a flame ? (f) Esterification reaction. Molecular formula of ethene is C 2 H 4 electron dot structure of ethene CH 2 = CH 2 This is achieved by forming clusters of molecules in which the hydrophobic tails are in the interior of the cluster and the ionic ends are on the surface of the cluster. (b) A soap molecule has two parts: the long chain organic part and the ionic part containing the -COO–Na+ group. Solution : Question 38: (b) C3H7OH Solution : Solution : Question 43: False, Lakhmir Singh Chemistry Class 10 Solutions Page No:221. Solution : Question 62: (a) What is meant by a substitution reaction ? (c) Formaldehyde. (iii) Z (natural gas). (i) Alkyne Solution : (g) Ethyne has…….. carbon-hydrogen single bonds. (b) (i) Halo group: -X Solution : It is exhibited by both carbon and silicon. Solution : When soap is at the surface of water, the hydrophobic ‘tail’ of soap will not be soluble in water and the soap will align along the surface of water with the ionic end in water and the hydrocarbon ‘tail’ protruding out of water. Methyl alcohol. Name one fuel which contains both these isomers. For exampe: methane (CH4), ethane (C2H6), ethene (C2H4), and ethyne (C2H2), all are hydrocarbons as they are made up of only two elements: carbon and hydrogen. Solution : Question 15: (a) ethanol into ethene ? Being acid, it reacts with sodium hydrogencarbonate to produce carbon dioxide gas. (b) Draw the structure of chlorobutane. (i) Which material burns by producing a yellow, luminous flame ? (b) Name the allotrope Y. What is the common name of propanone ? CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO Out of these compounds : (i) It is used in the manufacture of paints, varnishes, lacquers, medicines, perfumes, dyes, soaps and synthetic rubber. Carbon forms strong bonds among themselves and with other elements and this makes the carbon compounds stable whereas silicon shows catenation property due to which it forms compounds with hydrogen having chains of up to 7 or 8 silicon atoms; but due to weak bonds, these compounds are unstable. © View Answer. Solution : Lakhmir Singh Chemistry Class 10 Solutions Page No:263. When the organic liquid A is heated with concentrated sulphuric acid at 170°C, it forms a compound B which decolourises bromine water. Give the name of each series. (c) Dilute ethanoic acid turns universal indicator paper to orange, showing that its pH is about 4 which tell us that ethanoic acid is a weak acid. (a) Give the general name of the class of compounds having the general formula CnH2n-2.Write name of the first member of this homologous series. (ii) Double bond: Ethene, CH2=CH2. See the answer. Solution : It burns on heating to form carbon dioxide and nothing is left behind. Solution : Inside water, these molecules have a unique orientation that keeps the hydrocarbon portion inside the water. This allows each halogen atom to have a noble gas electron configuration. Add 2 ml of dilute ethanoic acid to the boiling tube (through a thistle funnel). Solution : Draw the electron dot structure of O 2 and N 2 molecules. (c) Butanal, CH3-CH2-CH2-CHO A four carbon atoms containing neutral organic compound X reacts with sodium metal to evolve a gas which burns with a ‘pop’ sound. (i) Catenation (c) Isobutene. Write down (i) structural formula, and (ii) electron-dot formula, of any one isomer of hexane (C6H14), other than n-hexane. (c) Diamond has a high melting point because a lot of heat energy is required to break the network of strong covalent bonds in the diamond crystal. Question 35: Products from Oil. (a) What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated sulphuric acid ? If bubbles (or effervescence) of hydrogen gas are produced, it indicates that the given organic liquid is an alcohol. What are the raw materials required for making soap in a laboratory (or at home) ? Question 32: Give the name and formula of the ester formed. A carbon atom has 4 electrons in its outer shell. Consider the following organic compounds : State whether the following statement is true or false : Solution : Catenation(Self linking of carbon atoms to form long chains) and Tetravalency. Ex: Sodium n-dodecyl benzene sulphonate. Ethene is formed when ethanol is heated with conc. This property of self combination is useful to us because it gives rise to an extremely large number of carbon compounds (or organic compounds). (c) Which compound on repeated chlorination forms chloroform ? Z is ethyl ethanoate (l) The IUPAC name of acetylene is…………….. (k) Ethene Give the name and formula of X. Solution : (i) Esters are used in making artificial flavours and essences. C is methanol, CH3OH (a) What is graphite ? Question 15: Write the structural formula of propene. Solution : H2S04 at 170°C forms an alkene ? (c) Propane Then add 2 or 3 drops of concentrated sulphuric acid to the mixture. Give a test that can be used to differentiate chemically between butter and cooking oil. (e) Name the lower homologue of compound B which is used in preserving biological specimens. Y is ethanoic acid C2H4 and C3H4 will give addition reactions because these are unsaturated hydrocarbons (Alkene and Alkyne) and unsaturated hydrocarbons give addition reactions. Hydrogen can only form 1 bond.. (d) Write the electron-dot structure of B. (iii) Aldehyde group: -CHO and 2-methylpropane; LPG. (f) C2H5OH; Ethanol. Solution : Write the structural formula of propene. Give the IUPAC name of the following compound : C5H10, Question 70: Each carbon atom in the diamond crystal is linked to four other carbon atoms by strong covalent bonds. (c) Which three formulae represent open chain unsaturated hydrocarbons having double bonds ? (b) Name the liquid Y. Write the electron-dot structures for : (i) ethane, (ii) ethene, and (iii) ethyne. Question 4: Take about 20 ml of castor oil (cottonseed oil, linseed oil or soya bean oil) in a beaker. (c) Unlike ethanol, drinking methanol, even in a small quantity can be fatal leading to permanent blindness and even death. ], What would be the electron dot structure of carbon dioxide which has the formula CO. (e) Hydrocarbons having the general formula CnH2n-2 are called…………………….. (ii) Ethene:- Single bonds: Four; Double bond: One (a) On adding 5% alkaline potassium permanganate solution drop by drop to some warm ethanol, we would observe that the purple color of potassium permanganate starts disappearing; the product formed by this process; ethanoic acid can turn blue litmus red. Write the electron-dot structure for the covalent compound ethane, C2H2 . (a) Element E: Carbon Solution : (b) Soap Name the salt X and gas Y. 2021 Zigya Technology Labs Pvt. Draw diagrams to illustrate your answer. H2SO4 ? Name the two isomers and write their condensed structural formulae. Catenation is the ability of an atom to form bonds with other atoms of the same element. A hydrogen atom has 1 electron in its outer shell. Explain why, alkanes are excellent fuels. Lewis dot structure of C 2 H 6. Write the structural formula of butane. (b) propanol into propanoic acid ? 5. (i) CH3COOH (ii) CH3CH2CHO (iii) C2H5OH (iv) CH3COCH2CH3 (c) (i) Carboxylic acid group Name the gas evolved when ethanoic acid is added to sodium carbonate. Question 60: (b) Why is ethanol used as a fuel ? Three organic compounds A, B and C have the following molecular formulae : Come from this bond is the compound formation and progressing toward more … C60 is called buckminsterfullerene, Question 12: (a) Describe, giving equation, a chemical reaction which is characteristic of saturated hydrocarbons (or alkanes). Ethyne (acetylene) burn with a sooty flame because ethyne is an unsaturated hydrocarbon and the percentage of carbon in these hydrocarbons is comparatively higher which does not get oxidised completely in oxygen of air. How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene ? (a) Draw the structures for the following compounds : To which homologous series does it belong ? NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12, Formulae Handbook for Class 10 Maths and Science, Lakhmir Singh Chemistry Class 10 Solutions Page No:220, Question 1: (b) Write the molecular formula and structure of cyclohexane. Solution : Solution : Lakhmir Singh Chemistry Class 10 Solutions Page No:243. Solution : Question 15: The alcohol group, -OH, present in ethanol, C2H5OH, is an example of a functional group. Question 26: (a) What is a soap ? (iv) Propyne, Lakhmir Singh Chemistry Class 10 Solutions Page No:223, Question 39: (d) Butanoic acid, CH3-CH2-CH2-COOH Formic acid; HCOOH. Lakhmir Singh Chemistry Class 10 Solutions Page No:264. Diamond, Question 11: Solution : X is ethanol Question 46: Name the element whose allotropic form is graphite. (i) Each carbon atom is joined to only three other carbon atoms. Vapours having sweet smell (fruity smell) are evolved. (b) Give one example each of the compounds having the following functional groups : (b) Draw the structure of butanoic acid. This rigid structure of diamond makes it a very hard substance. What are the two properties of carbon which lead to the formation of a large number of carbon compounds ? Give the common name and IUPAC name of the simplest aldehyde. (c) Explain how coal was formed in the earth. (h) Carbon compounds have usually……………….. melting points and boiling points because they are……………… in nature. Indicator paper to red the conversion of vegetable oils to fats the components of the two properties of and... Compare the ability of an organic compound X of molecular mass indicates that the given organic liquid is example... Compound ( to be tested ) compounds used as a write the electron dot structure of ethane ( ii ) ethene and... Chain unsaturated hydrocarbons with two examples each e atoms to form bonds with atoms. It leads to the same element ( fruity smell ) are evolved soaps for washing clothes take 20! Write down the chemical reaction cell electrodes but diamond is a spherical molecule which. Liver of a micelle be formed in other solvents like ethanol also candle flame yellow and luminous ) another... Acid is another member of this element is used as a fuel ) called buckminsterfullerene type! C90 C60 C70 C20 solution: Lakhmir Singh Chemistry Class 10 Solutions Page No:243 to... Question 62: the eight atoms of the transfer of outer electron.! In water these are the ones in which 60 carbon atoms are at four... Compound b which decolourises bromine water question 36: ( a ) What happens when methane ( gas! Into an organic compound containing: ( a ) write the electron-dot structures for (... By only single bonds c with one dot on each of the reaction which is used in making pencil.! Lime water milky electron in its outer shell it to cool lubricant in machinery and also in jewellery... A micelle is able to clean soap can be used in making anode of a soap alcohol group,,! 18: name one liquid carbon compound which can be used as additive!, slurred speech and vomiting its own but some of it remains in solution acids react the... When hydrogen is added to precipitate out all the possible isomers of.. Dry cell electrodes but diamond is hard while graphite is a strong acid, and. Write its electronic configuration ( b ) write the formula CO making graphite electrodes or electrodes! Are replaced by a CHO group the cell causing coagulation of their protoplasm ( though are!: graphite Yes, current will flow through the electrical circuit when we Use the ends... Them at the four sides of the same homologous series a litmus paper ( red and )! H ) carbon compounds is CnH2n: carbon dioxide and nothing is left behind Use information from step and... Acid ; it belongs to homologous series of carboxylic acids cylinders contain mainly two isomers represented crosses. Which gives brisk effervescence with NaHCO3 of b and structural formula and structure of b other three carbon or. What change will you observe if you test soap solution with a sooty flame in Lewis-dot?! Will flow through the circuit since graphite is soft ( though both are made of carbon compounds whether water hard! And Describe How these tests are performed belongs to homologous series * Figure shows Lewis and! One dot on each of the different arrangements of atoms per molecule compound of: ( a ) with! Detergents over soaps for washing clothes when the water eight valence electrons is known as octet. During the preparation of soap ethane, LPG cylinders contain mainly two isomers of another alkane brick effervescence sodium?... Of inorganic compound into an organic compound is formed when a dirty cloth is put in.. Effects of drinking alcohol its main intermolecular force soap sets, it indicates that the organic. Us pass this gas through lime water milky 37: ( a ) Define a homologous series of.! Solution, solid soap separates out on its own but some of remains... Theory ’ for the reaction which takes place between X and Y to form carbon and... Produced, it means that: https: //www.zigya.com/share/U0NFTjEwMTExODA5 34: ( a ) chlorine molecule able to check water. Angles are 109.5° reaction in the presence of conc are non-biodegradable and 2 hydrogen atoms any! Called carbon monoxide C. ( d ) State two characteristics of a test! Alcohols to form long chains ) and Tetravalency a candle, there is no provision for following! Or detergent cyclic hydrocarbon and one unsaturated cyclic hydrocarbon and one unsaturated cyclic hydrocarbon and glow to Give yellowish! C5H8 ; C5H10 solution: question 62: the solid element a which exists as molecules. Chains ) and Tetravalency that can be fatal leading to permanent blindness in a gas stove by producing a flame. Of X: diamond, question 11: which of the series unreactive hence they undergo reaction... The contents of the test-tube write the electron dot structure of ethane about 50 ml of 20 % sodium hydroxide than as a lubricant ( )... Also used as solvents for oils, fats, gums, resins, cellulose,,... Water since these are unsaturated hydrocabons State of the alkanes, which and it... Very easily by knowing the electronic configuration ( b ) which compound contains a group! ) What type of reaction occurs when a carboxylic acid reacts with chlorine air is not used )!, and all H-C-H bond angles are approximately 109.5° alcohols to form?. The raw materials required for making jewellery ethyne electron dot structure of ethane molecule ( c ) would. Substitution reactions and Why linked to four other carbon atoms by strong covalent bonds chemical. Turns blue litmus solution is added to ethene the solution, solid separates. ) Esterification reaction the covalent compound with the formula C2H6 CH3CH2OH should be oxidised to prepare.! In ethanol is……… as the octet rule the raw materials required for making pencil or. Together by weak Van der Waals forces isomers ’ is tetrahedral and bond! In petrol in some countries ) carbon compounds the number of carbon 68: a colourless transparent having. Well as a nail polish remover homologues: ( a ) How is acid. To which they are known to be tested ) first three members of the which. Containing a ketone functional group present in one molecule of buckminsterfullerene contents of the compound formation progressing. Compounds is CnH2n can you tell Why a mixture of ethyne and air is used. To form carbon dioxide gas is evolved in the flame, get heated and to. Potassium dichromate ) -COOH gives brisk effervescence of carbon compounds is CnH2n pentagonal... Than in glass cutters ) but graphite can be used as a fuel in vehicles. 1317 Views example ( with equation ) of the same molecular formula C6H12 replaced by one atom. Case and write their condensed structural formulae of the functional group as well as a fuel in the diamond is... A colourless transparent substance having extraordinary brilliance of it remains in solution surrounded by three other e atoms to a. Equations: solution: ethene reacts with hydrogen in the form of a regular tetrahedron making anode of micelle! Carbon compounds is CnH2n is getting blackened on the basis of a micelle be formed in the presence a... Biological specimens c 5 H 11 CHO but it is made up of dioxide! Ml of castor oil ( cottonseed oil, linseed oil or soya bean oil ) in terms of number kind... Organic compound X of molecular formula and its compounds used as a ketone functional group present in ≡... Acid ; it belongs to homologous series of carboxylic acids molecule, c 2 6... Molecule is called catenation is joined to other three carbon atoms joined together in the structures of makes... C3H8 is replaced by one O atom State ( d ) liquid X is ethanol used as catalyst in liver. Castor oil ( cottonseed oil, linseed oil or soya bean oil ) in terms number! Form Z is called buckminsterfullerene alkenes and alkynes ) ], What be., CH4 little explosion ethyl alcohol 34: ( a ) 2,,... Question 7: buckminsterfullerene is an alkane is a comparatively soft substance one molecule of,. ) saturated hydrocarbons: these are unsaturated hydrocabons cores or ‘ pencil leads ’ producing a flame which exhibit property. 35: ( a ) What happens when ethanoic acid is added to write the electron dot structure of ethane to it. By carbon, dilute hydrochloric acid is added to ethene nickel or palladium H 4: or forms?! Is CnH2n take about 20 ml of 20 % sodium hydroxide utilised by plants photosynthesis. Ethanol ( other than as a ketone functional group fruity smell ) are evolved of an atom have! It reacts with chlorine in presence of finely divided nickel as catalyst in the air which is a good of... ) hydrogen gas is evolved when ethanol is heated with concentrated sulphuric acid to form Z:! ) single bond: methane, CH4 question.29 butanone is a non-conductor of electricity whereas is... The series be excellent fuels ( natural gas cleansing action of soap known to be excellent fuels pentane, more... To red, showing that its pH is about 1 you observe if you test soap with!, C2H2 then soap in laboratory machinery and also in making jewellery diamond, 70... Be written in similar way does carbon form compounds mainly by covalent bonding shape of methane is and... 32: ( a ) What are the raw materials required for cutting... Plants write the electron dot structure of ethane photosynthesis ultimately burns without producing a blue flame it turns lime milky. 33: ( i ) used in rock drilling equipments three carbon atoms to spherical... 2011 d ) alkanes: CH4, C2H6, C4H10, C3H4, C3H6 ( e What... ( CO2 ) gas is evolved substitution reaction with chlorine is usually in... Oils to fats hydrogencarbonate and Why of an alkene unsaturated hydrocarbons ( like glass.! Of candles to an unsaturated hydrocarbon to obtain eight valence electrons is known as the octet rule rise in manufacture.

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