Chloroform is kept in dark coloured bottles because:

1. It is inflammable.

2. It gives a peroxide.

3. It undergoes rapid chlorination.

4. It is oxidised to poisonous phosgene gas.

Vicinal and geminal dihalides can be distinguished by:

(1) KOH (aq)

(2) KOH (alc.)

(3) Zn dust

(4) none of those 

1-2-dichloro ethane + $NaSC{H}_{2}C{H}_{2}SNa\to C_4{H}_8{S}_2+\left(P\right)$

Unknown product (P) of the above reaction is:

1. 

2. 

3. 

4. 

 Product of reaction is :

(1)

(2)

(3)

(4) 

Which of the following alkyl halide undergo rearrangement in S_N1 reaction?

1. $\begin{array}{ccccccc}{\mathrm{CH}}_3& -& \underset{{\mathrm{CH}}_3}{\underset{|}{\stackrel{{\mathrm{CH}}_3}{\stackrel{|}{\mathrm{C}}}}}& -& \underset{\mathrm{I}}{\underset{|}{\mathrm{CH}}}& -& {\mathrm{CH}}_3\end{array}$

2.  

3.  

4. All of these

The product X in the below mentioned reaction is:

1.		2.
3.		4.

Major product of the above reaction is:

1. 

2. 

3. 

4. 

Anisole$\underset{\mathrm{reflux}}{\overset{\mathrm{excess} \mathrm{HI} (\mathrm{conc}.)}{\to }}$Product

1. 

2. 

3. 

4. 

HC$\equiv$CNa + Cl-CH₂-CH₂-CH₂-I $\to$ (A); Major product (A) is:

1. H-C$\equiv$C-CH₂-CH₂-CH₂-I

2. CH₂ = CH-CH₂-I

3. H-C $\equiv$ C-CH₂-CH₂-CH₂-Cl

4. CH₂ = CH-CH₂-Cl

$\underset{{\mathrm{NH}}_{3\left(\mathrm{l}\right)}}{\overset{2 \mathrm{eq}. {\mathrm{KNH}}_2}{\to }}$$\underset{\mathrm{then} {\mathrm{H}}_3\mathrm{O}}{\overset{\mathrm{n}-\mathrm{C}{\hspace{0.17em}}_4{\mathrm{H}}_9-\mathrm{Br}}{\to }}$(P);End product (P) of the above reaction is:

1.

2. 

3. 

4.