Arrange the following alkyl halides in the decreasing order of ${\mathrm{S}}_{\mathrm{N}}1$ reactivity

(I) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$

(II) ${\mathrm{CH}}_2=\mathrm{CHCH}\left(\mathrm{Cl}\right){\mathrm{CH}}_3$

(III) ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{Cl}\right){\mathrm{CH}}_3$

1. I>II>III                            2. II>I>III

3. II>III>I                            4. III>II>I

Butanenitrile may be prepared by heating-

1. Propyl alcohol with KCN

2. Butyl chloride with KCN

3. Butyl alcohol with KCN

4. Propyl chloride with KCN

The correct order of solvolysis in the following alkyl halide is

1.   >  ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Cl}$  >  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$

2.   ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Cl}$     >   >  ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$

3.   ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$  >   ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Cl}$    >    

4.  ${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Cl}$  >   ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$   >     

The products of reaction of alcoholic silver nitrite with ethyl bromide are :

1. Ethane

2. Ethene

3. Ethyl alcohol

4. Nitroethane

Order of nucleophilicity in polar protic solvent is

1. ${\mathrm{I}}^{-}>{\mathrm{Br}}^{-}>{\mathrm{F}}^{-}>{\mathrm{Cl}}^{-}$

2. ${\mathrm{F}}^{-}>{\mathrm{Cl}}^{-}>{\mathrm{Br}}^{-}>{\mathrm{I}}^{-}$

3. ${\mathrm{I}}^{-}>{\mathrm{Cl}}^{-}>{\mathrm{F}}^{-}>{\mathrm{Br}}^{-}$

4. ${\mathrm{I}}^{-}>{\mathrm{Br}}^{-}>{\mathrm{Cl}}^{-}>{\mathrm{F}}^{-}$

Phenylmagnesium bromide reacts with methanol to give

1. A mixture of toluene and Mg(OH)Br

2. A mixture of phenol and Mg(Me)Br

3. A mixture of anisole and Mg(OH)Br

4. A mixture of benzene and Mg(OMe)Br

Debromination of meso-dibromobutane gives mainly

1. n-Butane

2. 1-Butene

3. cis-2-Butene

4. trans-2-Butene

Benzoylchloride is prepared from benzoic acid by 

1. ${\mathrm{Cl}}_2$, hv                           

2. ${\mathrm{SO}}_2$, ${\mathrm{Cl}}_2$

3. ${\mathrm{SOCl}}_2$                         

4. ${\mathrm{Cl}}_2$, ${\mathrm{H}}_2\mathrm{O}$

Which haloarenes is most reactive towards electrophilic substitution reaction?

1.		2.
3.		4.

Which nitro derivative of haloarene is most reactive towards nucleophilic substitution reaction?

1. 

 2.

 3. 

4.