The reaction below is an example of:

1. Addition reaction.

2. ${\mathrm{S}}_{\mathrm{N}}\mathrm{1\; reaction}$

3. Elimination reaction.

4. ${\mathrm{S}}_{\mathrm{N}}\mathrm{2\; reaction}$

 Sulphuric acid is not used during the reaction of alcohols with KI and acts as :

1. Reducing agent

2. Electron donor

3. Electron acceptor

4. Oxidising agent

Wurtz reaction is not preferred for the preparation of alkanes containing an odd number of carbon atoms because:

A hydrocarbon C₅H₁₀ does not react with chlorine in the dark but gives a single monochloro compound C₅H₉Cl in bright sunlight. Hydrocarbon could be:

Out of ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Cl}$ $\mathrm{and}$ ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CHClC}}_6{\mathrm{H}}_5$, the one that gets easily hydrolyzed by aqueous KOH is :

1. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CHClC}}_6{\mathrm{H}}_5$ 

2. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Cl}$

3. Both react equally

4. None of the above

The best substrate for the preparation of 1-iodobutane in the presence of NaI/dry acetone is:
1. 1-Chlorobutane 
2. n-Butane
3. Butanol
4. Butyne

1. 1-Butanol

2. But-1-ene

3. Butyne

4. Butanal

1. Methylenecyclohexane

2. 4-Methylcyclohex-1-ene

3. 1-Methylcyclohex-1-ene

4. None of the above

A major product is obtained by the dehydrohalogenation of 2-Chloro-2-methyl butane with sodium ethoxide in ethanol. The product's IUPAC name is:

1. 2-Methyl-2-butene

2. 2-Methyl-1-butene

3. 1-Methyl-2-butene

4. Methyl butene