Alcohols, Phenols, and Ethers Class 12 MCQs Questions with Answers

1. Acid-cataylysed hydration of alkenes except ethene leads to the formation of:

2. Dehydration of alcohol is an example of:

3. During dehydration of alcohols to alkenes by heating with cone. H2SO4 the initial step is:

4. 1-propanol and 2-propanol can be best dis¬tinguished by:

5. Which of the following reacts with NaOH to give an alcohol?

6. Which of the following reagents cannot be used to distinguish between phenol and benzyl alcohol?

7. Which compound is predominantly formed when phenol is allowed to react with bromine in aqueous medium?

8. Dehydration of alcohol is an example of:

9. Catalytic Dehydrogenation of Primary Alcohol gives a___

10. Among the following sets of reactants which one produces anisole?

11. Which of the Following is Formed when Glycerol is heated with Oxalic Acid at 503K?

12. When Phenol is treated with Excess Bromine Water it gives___

13. Ethylene reacts with Baeyer’s reagent to give:

14. In the reduction
R — CHO + H2 → RCH2OH
the catalyst used is :

15. Phenol reacts with Br2 in CS2 at low temperature to give:

16. Which of the Following is True?

17. HBr reacts fastest with:

18. Wood spirit is known as acetone:

19. Phenols are more acidic than alcohols because:

20. Benzenediazonium chloride on reaction with phenol in weakly basic medium gives: