Find the type of isomerism shown by buta-1,3-diene and but-2-yne.

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

What is the relationship between the two given molecular structures?

In the following carbocations, the most stabile carbocation:

(1)  RCH₂C+H₃         

₍₂₎ 

₍₃₎                

 ₍₄₎ 

Identify the number of optical isomers of pent-3-en-2-ol.

1. Two (2)               

2. Four (4)

3. Eight (8)              

4. Sixteen (16)

(1) Monovalent 

(2) Bivalent

(3) Trivalent

(4) Tetravalent

Which of the following structures permits cis-trans isomerism?

1. X₂C=CY₂

2. XYC=CZ₂

3. X₂C=CXY

4. XYC=CXY

Find the number of optically active isomers for a compound containing two dissimilar asymmetric carbon atoms.

1. Two (2)

2. Three (3)

3. Four (4)

4. Five (5)

The number of geometrical isomers in case of a compound with the structure,

CH₃-CH=CH-CH=CH-C₂H₅ are:

1. Four                 

2. Three

3. Two                 

4. Five