Which of the following compounds has the lowest boiling point?

1. Pentyl chloride

2. tertiary-Butyl chloride

3. Isobutyl chloride

4. n-Butyl chloride

The molecule among the following with the maximum reactivity towards ${\mathrm{S}}_{\mathrm{N}}2$ reaction is:

1. ${\mathrm{R}}_3\mathrm{CX}$

2. ${\mathrm{RCH}}_2\mathrm{X}$

3. ${\mathrm{R}}_2\mathrm{CHX}$

4. ${\mathrm{CH}}_3\mathrm{X}$

What is the correct order of boiling points for alkyl halides?

1. C₂H₅Cl > C₂H₅Br > C₂H₅I

2. C₂H₅I > C₂H₅Br > C₂H₅Cl  

3. C₂H₅I > C₂H₅Cl > C₂H₅Br

4. C₂H₅Br > C₂H₅I > C₂H₅Cl

Substitution of chloride takes place at higher temperatures in 

1. ${\mathrm{CH}}_2={\mathrm{CH}}_2$

2. ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2$

3. $\mathrm{CH}\equiv \mathrm{CH}$

4. None of the above

Chlorobenzene on heating with ${\mathrm{NH}}_3$ under pressure is the presence of cuprous chloride gives

1. nitrobenzene

2. aniline

3. benzamide

4. o- and p-chloroaminobenzene

Which halide among the following exhibits the highest reactivity in an S_N1 reaction?

1. sec-Butyl chloride

2. tert-Butyl chloride

3. n-Butyl chloride

4. Allyl chloride

The number of dibromo derivatives of propane are

1. 5

2. 4

3. 3

4. 2

1,1-dibromorethane when heated with zinc dust produces

1. Ethyl bromide

2. Ethene

3. Vinyl bromide

4. 2-Butene

 The decreasing order of dipole moment of methyl halides is represented by:

1. \(\mathrm{CH}_3 \mathrm{Cl}, \mathrm{CH}_3 \mathrm{Br}, \mathrm{CH}_3 \mathrm{~F} \)
2. \(\mathrm{CH}_3 \mathrm{Cl}, \mathrm{CH}_3 \mathrm{~F}, \mathrm{CH}_3 \mathrm{Br} \)
3. \(\mathrm{CH}_3 \mathrm{Br}, \mathrm{CH}_3 \mathrm{Cl}, \mathrm{CH}_3 \mathrm{~F} \)
4. \(\mathrm{CH}_3 \mathrm{Br}, \mathrm{CH}_3 \mathrm{~F}, \mathrm{CH}_3 \mathrm{Cl} \)

Which of the following is the most suitable solvent for Mg metal to react with alkyl bromide?
1. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{OCH}_3 \)
2. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{~N}\left(\mathrm{CH}_3\right)_2 \)
3. \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{OC}_2 \mathrm{H}_5\)
4. Equally in all three given above