1-2-dichloro ethane + NaSCH₂CH₂SNa $\to$ P (C₄H₈S₂) 

Unknown product (p) of the above reaction is:

1. 

2. 

3. $\mathrm{H}-\mathrm{S}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{S}-\mathrm{H}$

4. $\mathrm{H}-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{S}-\mathrm{H}$

Which of the following alkyl halides has the maximum density?

Grignard reagent shows addition on:

1. >C=O                             2. -C$\equiv$N

3. >C=S                              4. all of these

Sodium ethoxide reacts with ethyl iodide to yield:

1. CH₃CH₃                               2. C₂H₅OCH₃

3. C₂H₅OC₂H₅                          4. none of these

The set of reagents used to produce freon (CCl₂F₂) are:

What causes an alkyl iodide to darken on standing?

1. Hydrolysis                         

2. Conversion into ether

3. Liberation of iodine             

4. Formation of alkanes

In the following sequences of reactions;

CH₃CH₂CH₂I →KOH(alc.)(A)→Br₂(B)→NaNH₂/NH₃(C) the end product (C) is:

1. alkene

2. alkanol

3. alkyne

4. alkyl amine

PCI₅ reacts with propanone to give:

1. gem-Dichloride

2. vic-Dichloride

3. Propanal

4. Propane chloride

Identify (Z) in the following reaction series,

C₂H₅I$\underset{\mathrm{KOH}}{\overset{\mathrm{Alcoholic}<mspace\; width="1em"></mspace>}{\to }}$ (x) $\stackrel{{\mathrm{Br}}_2}{\to }$ (Y) $\stackrel{\mathrm{KCN}}{\to }$(Z):

1. CH₃-CH₂-CN

2. $\begin{array}{ccc}\underset{\mathrm{CN}}{\underset{|}{{\mathrm{CH}}_2}}& -& \underset{\mathrm{CN}}{\underset{|}{{\mathrm{CH}}_2}}\end{array}$

3. $\begin{array}{ccc}\underset{\mathrm{Br}}{\underset{|}{{\mathrm{CH}}_2}}& -& \underset{\mathrm{CN}}{\underset{|}{{\mathrm{CH}}_2}}\end{array}\begin{array}{}\end{array}$

4. $\begin{array}{ccc}\underset{\mathrm{Br}}{\underset{|}{\mathrm{CH}}}& =& \underset{\mathrm{CN}}{\underset{|}{\mathrm{CH}}}\end{array}$