Alcohal phenol and ether
11. 1.Write the mechanism of the following reaction:
2 CH3CH2OH + conc H2SO4 ----413K→ CH3CH2OCH2CH3
12. Write the main product(s) in each of the following reactions: 1. Which one of the following is more volatile
O-nitrophenol and P- nitrophenol
2. Explain the mechanism of the following reaction:
3. How will you convert:
i. Propene to Propan-2-ol?
ii. Phenol to 2, 4, 6 – tri nitrophenol ?
13. Write the major product in the following equations :
4. Explain the following giving one example for each:
i. Reimer-Tiemann reaction.
ii. Friedel Craft's acetylation of anisole.
14. (1) Write the mechanism of the following reaction : 5. How would you obtain
2CH3CH2OH + H+ → CH3CH2 – O – CH2CH3 i. Picric acid (2, 4, 6-trinitrophenol) from phenol,
(2) Write the equation involved in the acetylation of Salicylic acid. ii. 2-Methylpropene from 2-methylpropanol ?
15. Write the IUPAC name of the given compound : 6. Illustrate the following reactions giving a chemical equation for each:
i. Kolbe’s reaction,
ii. Williamson synthesis.
7. How are the following conversions carried out?
16. Write the IUPAC name of the given compound : i. Benzyl chloride to benzyl alcohol,
ii. Methyl magnesium bromide to 2-methylpropan-2-ol.
17. Give reasons for the following :
i. Phenol is more acidic than methanol.
ii. The C – O – H bond angle in alcohols is slightly less than the tetrahedral angle
(109°28’).
iii. (CH3)3C – O – CH3 on reaction with HI gives (CH3)3C –I and main products and
not (CH3)3C – OH and CH3-I.
18. Write the equations involved in the following reactions :
(i) Williamson ether synthesis
8. How would you account for the following :
(ii) Kolbe’s reaction
i. Phenols are much more acidic than alcohols.
19. Write the equations involved in the following reactions : ii. The boiling points of ethers are much lower than those of the alcohols of comparable
i. Reimer – Tiemann reaction molar masses.
ii. Williamson synthesis 9. Write the reactions and the conditions involved in the conversion of:
20. Write the mechanism of the following reaction : i. Propene to 1-Propanol
CH3CH2OH + HBr → CH3CH2Br + H2O ii. Phenol to Salicyclic acid
11. 1.Write the mechanism of the following reaction:
2 CH3CH2OH + conc H2SO4 ----413K→ CH3CH2OCH2CH3
12. Write the main product(s) in each of the following reactions: 1. Which one of the following is more volatile
O-nitrophenol and P- nitrophenol
2. Explain the mechanism of the following reaction:
3. How will you convert:
i. Propene to Propan-2-ol?
ii. Phenol to 2, 4, 6 – tri nitrophenol ?
13. Write the major product in the following equations :
4. Explain the following giving one example for each:
i. Reimer-Tiemann reaction.
ii. Friedel Craft's acetylation of anisole.
14. (1) Write the mechanism of the following reaction : 5. How would you obtain
2CH3CH2OH + H+ → CH3CH2 – O – CH2CH3 i. Picric acid (2, 4, 6-trinitrophenol) from phenol,
(2) Write the equation involved in the acetylation of Salicylic acid. ii. 2-Methylpropene from 2-methylpropanol ?
15. Write the IUPAC name of the given compound : 6. Illustrate the following reactions giving a chemical equation for each:
i. Kolbe’s reaction,
ii. Williamson synthesis.
7. How are the following conversions carried out?
16. Write the IUPAC name of the given compound : i. Benzyl chloride to benzyl alcohol,
ii. Methyl magnesium bromide to 2-methylpropan-2-ol.
17. Give reasons for the following :
i. Phenol is more acidic than methanol.
ii. The C – O – H bond angle in alcohols is slightly less than the tetrahedral angle
(109°28’).
iii. (CH3)3C – O – CH3 on reaction with HI gives (CH3)3C –I and main products and
not (CH3)3C – OH and CH3-I.
18. Write the equations involved in the following reactions :
(i) Williamson ether synthesis
8. How would you account for the following :
(ii) Kolbe’s reaction
i. Phenols are much more acidic than alcohols.
19. Write the equations involved in the following reactions : ii. The boiling points of ethers are much lower than those of the alcohols of comparable
i. Reimer – Tiemann reaction molar masses.
ii. Williamson synthesis 9. Write the reactions and the conditions involved in the conversion of:
20. Write the mechanism of the following reaction : i. Propene to 1-Propanol
CH3CH2OH + HBr → CH3CH2Br + H2O ii. Phenol to Salicyclic acid
