Carbon is a unique element that forms the backbone of organic chemistry. Its ability to form four covalent bonds leads to an immense variety of compounds, from simple hydrocarbons to complex biomolecules. This versatility arises from carbon’s capacity to form long chains and rings, bond with many different elements, and create double and triple bonds.
Carbon compounds are classified into several categories, such as alkanes, alkenes, alkynes, alcohols, aldehydes, ketones, and carboxylic acids, each with distinct properties and uses. Understanding these compounds is critical not only for academic success but also for appreciating their applications in daily life, industries, and environmental contexts. Our Carbon and its Compounds Class 10 MCQ with Answers is designed to help students grasp these concepts thoroughly and excel in their studies.
Carbon and its compounds are a fundamental part of chemistry, playing a crucial role in various natural and synthetic processes. In the Class 10 science curriculum, understanding the diverse nature of carbon compounds is essential for students. This chapter delves into the versatile bonding nature of carbon, its allotropes, and the wide array of organic compounds it forms.
To aid students in mastering this topic, we’ve compiled a comprehensive set of Carbon and its Compounds Class 10 MCQ with Answers to reinforce their knowledge and prepare them for exams.
Class 10 Carbon and its Compounds MCQ
Ques 1. Which of the following is an example of a tertiary alcohol?
a) 2-methyl-2-propanol
b) 1-propanol
c) 2-methyl-1-propanol
d) 2-propanol
Answer: a) 2-methyl-2-propanol
Ques 2. Which of the following compounds is an example of a saturated hydrocarbon?
a) Ethyne
b) Ethanol
c) Ethene
d) Ethane
Answer: d) Ethane
Ques 3. The functional group present in an alcohol molecule is:
a) Alkyl
b) Hydroxyl
c) Carboxyl
d) Carbonyl
Answer: b) Hydroxyl
Ques 4. The process of converting a liquid into its gaseous state is called:
a) Sublimation
b) Condensation
c) Evaporation
d) Melting
Answer: c) Evaporation
Ques 5. The molecular formula of benzene is:
a) C2H6
b) C2H4
c) C6H12
d) C6H6
Answer: d) C6H6
Also Check: Carbon and its Compounds Class 10 Notes Science Chapter 4
Ques 6. The simplest aldehyde is:
a) Butanal
b) Propanal
c) Ethanal
d) Methanal
Answer: d) Methanal
Ques 7. The process of respiration involves the conversion of glucose into:
a) Carbon dioxide and ethanol
b) Ethanol and water
c) Carbon monoxide and water
d) Carbon dioxide and water
Answer: d) Carbon dioxide and water
Ques 8. The process of fermentation involves the conversion of glucose into:
a) Carbon monoxide and water
b) Carbon dioxide and water
c) Carbon dioxide and ethanol
d) Ethanol and water
Answer: c) Carbon dioxide and ethanol
Ques 9. Which of the following is an unsaturated hydrocarbon?
a) Ethane
b) Ethyne
c) Ethene
d) Methane
Answer: c) Ethene
Ques 10. The process of the addition of hydrogen to an unsaturated compound is called:
a) Oxidation
b) Substitution
c) Addition
d) Reduction
Answer: c) Addition
Ques 11. The general formula of an alkene is:
a) CnH2n−2
b) CnH2n+2
c) CnHn
d) CnH2n
Answer: d) CnH2n
Ques 12. The chemical formula of ethanoic acid is:
a) CH3COOH
b) C2H6O2
c) C2H4O2
d) C2H5OH
Answer: a) CH3COOH
Also Check: Carbon and its Compounds Important Questions with Answers
Ques 13. The process of the removal of water from a substance is called:
a) Hydrolysis
b) Dehydration
c) Sublimation
d) Condensation
Answer: b) Dehydration
Ques 14. The functional group present in a carboxylic acid molecule is:
a) Hydroxyl
b) Carboxyl
c) Alkyl
d) Carbonyl
Answer: b) Carboxyl
Ques 15. Which of the following is an example of an ester?
a) Ethene
b) Ethane
c) Ethyl acetate
d) Ethanol
Answer: c) Ethyl acetate
Ques 16. Carbon is unique among the elements because it can:
a) Form compounds with metals only
b) Exhibit only one valency
c) Only bond with hydrogen
d) Form long chains and branched structures
Answer: d) Form long chains and branched structures
Ques 17. The allotrope of carbon used as a lubricant and in pencils is:
a) Amorphous carbon
b) Diamond
c) Graphite
d) Fullerenes
Answer: c) Graphite
Ques 18. Which of the following is an example of a saturated hydrocarbon?
a) Ethyne
b) Benzene
c) Ethane
d) Ethene
Answer: c) Ethane
Ques 19. The general formula for alkanes is:
a) CnH2n
b) CnH2n-2
c) CnHn
d) CnH2n+2
Answer: d) CnH2n+2
Ques 20. The process of conversion of vegetable oils to vegetable ghee involves:
a) Oxidation
b) Hydrogenation
c) Polymerization
d) Esterification
Answer: b) Hydrogenation
Ques 21. Which compound is responsible for the unique smell of garlic?
a) Ethyne
b) Methane
c) Allicin
d) Ethene
Answer: c) Allicin
Also Check: NCERT Exemplar Solutions for Class 10 Science Chapter 4 Carbon and Its Compounds
Ques 22. The functional group present in alcohols is:
a) -COOH (Carboxyl)
b) -NH2 (Amine)
c) -CHO (Aldehyde)
d) -OH (Hydroxyl)
Answer: d) -OH (Hydroxyl)
Ques 23. The process of fermentation involves the conversion of sugars to alcohol by:
a) Reduction
b) Esterification
c) Hydrolysis
d) Oxidation
Answer: d) Oxidation
Ques 24. A compound with the molecular formula C6H6 is known as:
a) Ethyne
b) Benzene
c) Methane
d) Ethene
Answer: b) Benzene
Ques 25. The hydrocarbon used as a domestic fuel is:
a) Benzene
b) Ethyne
c) Ethanol
d) Methane
Answer: d) Methane
Ques 26. Which of the following statements are correct for carbon compounds?
(i) Most carbon compounds are good conductors of electricity.
(ii) Most carbon compounds are poor conductors of electricity.
(iii) Force of attraction between molecules of carbon compounds is not very strong.
(iv) Force of attraction between molecules of carbon compounds is very strong.
a) (ii) and (iv)
b) (i) and (iii)
c) (ii) and (iii)
d) (i) and (iv)
Answer: c) (ii) and (iii)
Ques 27. C3H8 belongs to the homologous series of:
a) Cyclo alkanes
b) Alkenes
c) Alkynes
d) Alkanes
Answer: d) Alkanes
Ques 28. The number of isomers of pentane is:
a) 2
b) 3
c) 4
d) 5
Answer: b) 3
Ques 29. Which of the following will undergo addition reactions?
a) CH4
b) C3H8
c) C2H6
d) C2H4
Answer: d) C2H4
Ques 30. Ethanol on complete oxidation gives:
a) Ethanal
b) Acetone/ethanone
c) Acetic acid/ethanoic acid
d) CO2 and water
Answer: c) Acetic acid/ethanoic acid
Ques 31. Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?
a) CH3CH2OH
b) CH3CHO
c) CH3OH
d) CH3COOH
Answer: d) CH3COOH
Ques 32. Name the functional group present in CH3COCH3:
a) Aldehyde
b) Ketone
c) Carboxylic acid
d) Alcohol
Answer: b) Ketone
