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NCERTCBSE CHEMISTRY CLASS 12 CHAPTERWISE MCQ QUESTIONS

Welcome to your Unit 12: Aldehydes, Ketones and Carboxylic Acids

1. 
Which of the following compounds do not contain a carbonyl group?

2. 
How many carbon atoms does formaldehyde have?

3. 
Acetone is the common name of which of the following ketones?

4. 
Which of the following will be the main group when present in a compound together?

5. 
Which of the following carbonyl compounds can be prepared from Rosenmund reaction?

6. 
Which of the following exists as a gas at 287K?

7. 
Which of the following is the least soluble in water?

8. 
Aldehydes and ketones undergo __________ reactions.

9. 
Catalytic hydrogenation of _______ gives propan-2-ol.

10. 
Acetaldehyde is oxidised to ______ in the presence of nitric acid.

11. 
Which of the following is used in the preservation of biological specimens?

12. 
Which of the following carbonyl compounds are known for their pleasant odour?

13. 
Butyric acid was first obtained from _______

14. 
What is the common name of the simplest dicarboxylic acid?

15. 
Benzoic acid is obtained from the oxidation of _______ with alkaline KMnO4 followed by treatment with mineral acid.

16. 
Identify X in the following conversion.

17. 
Identify the product B in the reaction chain shown.

18. 
Benzoic acid is almost insoluble in which of the following solvents?

19. 
What is the relation between the acidic strength of A and B?

20. 
How many molecules of acetic acid react with H2SO4 on heating to give one molecule of acetic anhydride?

21. 
Soda lime consists of NaOH and CaO respectively, in the ratio of _______

22. 
Esters of which acid are used in the perfume industry?

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