Preparation of Alcohols from Alkenes

Q.

Write the balanced chemical equations for the given reactions: Sodium carbonate on reaction with hydrochloric acid in equal molar concentration gives sodium chloride and sodium hydrogen carbonate.

Q.

How do you convert benzyl chloride to benzyl alcohol?

Q.

Write the balanced chemical equation for the following:

concentrated Hydrochloric acid and Potassium permanganate solution.

Q.

Write balanced chemical equations for the given reaction:

Sodium hydrogen carbonate on reaction with hydrochloric acid gives sodium chloride, water and liberates carbon dioxide.

Q.

Write the mechanism of hydration of ethene to yield ethanol.

Q.

Ethyl alcohol is industrially prepared from ethylene by

1. Fermentation

2. Permanganate oxidation

3. Catalytic reduction

4. Absorbing in H₂SO₄ followed by hydrolysis

Q.

Give the balanced equations for reactions of aqueous ammonia with the following:

Lead nitrate

Q.
Compound A formed during the course of above reaction is:

1. 
2. 
3. 
4. 

Q. The compound used as an anesthetic during surgery is

1. chloroquine
2. Halothane
3. Chloramphenicol
4. Thyroxine

Q.

Show how would you synthesise the following alcohols from appropriate alkenes?

(i)

(ii)

(iii)

(iv)

Q.

Write the balanced chemical equation for the following:

Dehydration of concentrated Sulphuric acid with sugar crystals.

Q.

Give the balanced chemical equation for the preparation of ethanol from mono chloro ethane and sodium hydroxide.

Q.

Write a balanced equation for the preparation of each of the following salts:

Copper sulfate from Copper carbonate.

Q.

Write a balanced equation for the following case: Magnesium nitride is treated with warm water.

Q. Butan-2-one can be converted to propanoic acid by which of the following?

1. $NaOH,H^{+}$
2. Fehling's solution
3. $NaOH/I_2,H^{+}$
4. Tollens' reagent

Q. Which of the following reagents convert alkene into alcohol?

1. H₂O/H₂SO₄
2. (i)BH₃ (ii)Na(BH₄)
3. (i)Hg(OAc)₂ (ii)H₂O₂
4. All of these

Q. Kjeldahl's method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from $0.55g$ of the compound neutralised $12.5mL$ of $1M{H}_{2}S{O}_4$ solution. The percentage of nitrogen in the compound is (Nearest integer)

Q.

State how the following conversion can be carried out from Ethene to Ethyl alcohol

Q. Choose the suitable method for the preparation of butan-1-ol from butene.

1. H₂SO₄/H₂O

2. Hg(OAc)₂/H₂O followed by NaBH₄

3. H₂/Pd

4. B₂H₆/ether followed by H₂O₂/NaOH

Q. $3\text{-Phenyl propene}$ on reaction with $HBr$ gives (as a major product):

1. $C_6{H}_{5}C{H}_{2}CH\left(Br\right)C{H}_3$
2. $C_6{H}_{5}CH\left(Br\right)C{H}_{2}C{H}_3$
3. $C_6{H}_{5}C{H}_{2}C{H}_{2}C{H}_{2}Br$
4. $C_6{H}_{5}CH\left(Br\right)CH=C{H}_2$

Q. Product [X] in the following reaction is:

1. 
2. 
3. 
4. 

Q.

Write the balanced chemical equation for ethanol under high pressure and low pressure is treated with acidified potassium dichromate.

Q. In Stephen Reaction Nitriles are reduced to their corresponding imines with:

1. $SnC{l}_2+HCl$
2. $SnC{l}_2+NaOH$
3. Only $HCl$
4. Only $SnC{l}_2$

Q.

• Write the balanced chemical equation for the following.

Potassium bromide on treatment with manganese dioxide and sulphuric acid gives manganese and potassium sulphate, bromine and water.

Q.

Why alcohol cannot be used as solvents for grignard reagent ?

Q.

Write the balanced chemical equation for the following:

Action of heat on a mixture of Copper and concentrated Nitric acid.

Q.

Ethanol is prepared industrially by [MP PMT 1989]

1. Both the above

2. None of these

3. Hydration of ethylene

4. Fermentation of sugars

Q.

Write the mechanism of hydration of ethene to yield ethanol.

Q.

The product formed when ethene gas reacts with water in the presence of sulfuric acid is ___

Q.

Give the balanced equation for the laboratory preparation of an unsaturated hydrocarbon from alcohol.