A primary alkyl halide would prefer to undergo:

$1. {\mathrm{S}}_{\mathrm{N}}1 \mathrm{reaction}$
$2. {\mathrm{S}}_{\mathrm{N}}2 \mathrm{reaction}$
$3. \mathrm{\alpha }‐\mathrm{Elimination}$
$4. \mathrm{Racemisation}$

Which of the following alkyl halides will undergo $S_{N}1$ reaction most readily?

1.  ${( C{H}_3)}_3 C-F$

2. ${( C{H}_3)}_{3}C-Cl$

3. ${\left(C{H}_3\right)}_{3}C-Br$

4. ${\left(C{H}_3\right)}_{3}C-I$

The correct IUPAC name for the following compound is:

1.  1-Bromo-2-ethylpropane
2.  1-Bromo-2-ethyl-2-methylethane
3.  1-Bromo-2-methylbutane
4.  2-Methyl-1-bromobutane

What should be the correct IUPAC name for diethylbromomethane?

The reaction of toluene with chlorine in the presence of iron and in the absence of light produces:

1.
2.
3.
4.	Mixture of 2 and 3

Chloromethane on treatment with excess of ammonia yields mainly:

1.	N, N-dimethylmethanamine
2.	N-methylmethanamine (CH3 —NH—CH3 )
3.	Methanamine (CH3 NH2 )
4.	Mixture containing all these in equal proportion.

Molecules whose mirror image is non-superimposable over them are known as chiral. Which of the following molecules is chiral in nature?

1. 2 -Bromobutane
2. 1-Bromobutane

3. 2-Bromopropane
4. 2-Bromopropan-2-ol

The reaction of $C_6{H}_{5}C{H}_{2}Br$ with aqueous sodium hydroxide follows:

Which of the carbon atoms present in the molecule given below are asymmetric?

1. 1, 2, 3, 4   
2. 2, 3     
3. 1, 4   
4. 1, 2, 3

Which of the following compounds will give racemic mixture on nucleophilic substitution by OH${}^{-}$ ion?

(i)
(ii)
(iii)

  
1.  (iii) 
2.  (i), (ii) and (iii)     
3.  (ii) and (iii)     
4.  (i) and (iii)