The 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 is depending upon the temperature of the 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.

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

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

The correct increasing order of boiling points of the following compounds is:

1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene

Match the compounds in Column I with their respective effects in Column II:

Codes: