Carbon is a versatile element that forms the basis of all living organisms and many of the things we use. A large variety of compounds is formed because of its tetrivalence. Compounds of carbon are formed with oxygen, hydrogen, nitrogen, sulphur, chlorine and many other elements. Answer the following questions: (a) What are hydrocarbons? (b) List two properties by virtue of which carbon can form a large number of compounds. (c) (i) Write the formula of the functional group present in (1) aldehydes, and (2) ketones. Write chemical equation for the reaction that occurs between ethanoic acid and ethanol in the presence of a catalyst. OR (c) (ii) What are structural isomers? Write the structures of two isomers of butane .
Carbon is a versatile element that forms the basis of all living organisms and many of the things we use. A large variety of compounds is formed because of its tetrivalence. Compounds of carbon are formed with oxygen, hydrogen, nitrogen, sulphur, chlorine and many other elements. Answer the following questions: (a) What are hydrocarbons? (b) List two properties by virtue of which carbon can form a large number of compounds. (c) (i) Write the formula of the functional group present in (1) aldehydes, and (2) ketones. Write chemical equation for the reaction that occurs between ethanoic acid and ethanol in the presence of a catalyst. OR (c) (ii) What are structural isomers? Write the structures of two isomers of butane .
(a) Hydrocarbons are compounds of carbon that contain only carbon and hydrogen. (b) Two properties by virtue of which carbon can form a large number of compounds are: (1) Tetrivalence, and (2) Catenation. (c) (i) The formula of the functional group present in (1) aldehydes is -CHO, and (2) ketones is -CO-. The chemical equation for the reaction that occurs between ethanoic acid and ethanol in the presence of a catalyst is: CH3COOH + C2H5OH CH3COOC2H5 + H2O OR (c) (ii) Structural isomers are compounds with identical molecular formula but different structures. The structures of two isomers of butane (C4H10) are: (1) n-butane: CH3CH2CH2CH3, and (2) isobutane: (CH3)3CH.
Analysis & Explanation
Hydrocarbons are compounds of carbon that contain only carbon and hydrogen. Carbon can form a large number of compounds due to its tetrivalence and catenation. The functional group present in aldehydes is -CHO, and in ketones is -CO-. The reaction between ethanoic acid and ethanol in the presence of a catalyst is an esterification reaction. Structural isomers are compounds with identical molecular formula but different structures. The two isomers of butane (C4H10) are n-butane and isobutane.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2024?
This question carries 4 marks in the CBSE Class 10 Science 2024 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Carbon and its Compounds" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Versatile Nature of Carbon" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2024 paper?
This question appears in Section E in the CBSE Class 10 Science 2024 paper.