The IUPAC name of the compound shown below is:

1. 2-bromo-6-chlorocyclohex-1-ene

2. 6-bromo-6-chlorocyclohexene

3. 3-bromo-1-chlorocyclohex-1-ene

4. 1-bromo-3-chlorocyclohexene

Which of the following structures are superimposable?

(1) 

(2) 

(3) 

(4) 

(1) 1 and 2

(2) 2 and 3

(3) 1 and 4

(4) 1 and 3

The production of an optically active compound from a symmetric molecule without resolution in termed as:

(1) Walden inversion

(2) partial racemisation

(3) asymmetric synthesis

(4) partial resolution

Buta-1,3-diene and But-2-yne are:

1. Position isomers

2. Functional isomers

3. Chain isomers

4. Tautomers

The number of different substitution products possible when ethane is allowed to react with Chlorine in sunlight are:

(1) 9

(2) 6

(3) 8

(4) 5

In butane, which of the following forms has the lowest energy?

(1) Gauche form

(2) Eclipsed form

(3) Staggered form

(4) None of these

The pair of structures given below represent-
  

In the following carbocations, the most stabile carbocation:

(1)  RCH₂C+H₃         

₍₂₎ 

₍₃₎                

 ₍₄₎ 

The number of optical isomers of pent-3-en-2-ol is:

1. 2             

2. 4

3. 8             

4. 16

The group named as benzal possesses .... nature.

(1) monovalent 

(2) bivalent

(3) trivalent

(4) tetravalent