Chloromethane on treatment with excess of ammonia yields mainly:
1. N, N-dimethylmethanamine
2. N-methylmethanamine (CH${}_3$ —NH—CH${}_3$)
3. Methanamine (CH${}_3$NH${}_2$)
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

Reaction of $C_6{H}_{5}C{H}_{2}Br$ with aqueous sodium hydroxide follows ........  .

1.  S${}_N$1mechanism

2.  S${}_N$2 mechanism

3.  Any of the above wo depending upon the temperature of reaction

4.  Saytzetf rule

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) 

Arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.

1. (i)< (ii)< (iii)     

2. (iii)< (ii)< (i)       

3. (i)< (iii) <(ii)   

4. (iii)< (i)< (ii)

Arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution reaction:

(i)	(ii)	(iii)

1. (i) < (ii) < (iii)       

2. (i) < (iii) < (ii) 

3. (iii) < (ii) < (i) 

4. (ii) < (iii) < (i) 

Arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.

1. (iii) < (ii) < (i) 

2. (ii) < (iii) < (iii) 

3. (i) < (iii) < (ii) 

4. (i) <(ii) < (iii) 

Arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.

1.  (i) < (ii) < (iii) 

2.  (ii) < (i) < (iii) 

3.  (iii) < (ii) < (i) 

4.  (i) < (iii) < (ii) 

Which is the correct increasing order of boiling points of the following compounds?

1-iodobutane, 1-bromobutane, 1-chlorobutane, Butane