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

p-Dichlorobenzene has a higher melting point than those of o- and m-isomers because :

Primary alkyl halide C₄H₉Br(A) reacted with alcoholic KOH to give compound (B). Compound (B) is reacted with HBr to give (C), and it was found that C is an isomer of (A).
(A) with sodium metal, gives compound (D), C₈H₁₈ 
which is different from the compound formed when n-butyl bromide is reacted with sodium.
Compound (A) is :

1. 2-Methylpropene

2. Isobutyl bromide

3. 2,5-Dimethylhexane

4. 2-Bromo-2-methylpropane

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

The correct IUPAC name for the following structure is:
 
1. 2-Chloro-3-methylbutane

2. 3-Chloro-2-methylbutane

3. 2-Chloro-1-methylbutane

4. 3-Chloro-1-methylbutane

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

1. 2,2,3-Trimethyl-3-bromopentene

2. 3,4,4-Trimethylpent-2-ene

3. 3,4,4-Trimethylpent-3-ene

4. None of the above