Which of the following structures permits cis-trans isomerism?

1. X₂C=CY₂

2. XYC=CZ₂

3. X₂C=CXY

4. XYC=CXY

A compound contains 2 dissimilar asymmetric carbon atoms. The number of optically active isomers is

1. 2 

2. 3

3. 4

4. 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

Geometrical isomerism is caused by-

1. Restricted rotation around C=C bond.

2. The presence of one asymmetric carbon atom.

3. The different groups attached to the same functional group.

4. None of the above.

Which of the following is optically active?

1. Alanine

2. 2-butanol

3. Lactic acid

4. All of these

The isomerism which exists between CH₃CHCl₂, and CH₂ClCH₂Cl is:

1. Chain            

2. Functional

3. Position isomerism      

4. Metamerism

Lactic acid is:

1. propionic acid

2. β-hydroxypropanoic acid

3. α-hydroxypropanoic acid

4. none of the above

On monochlorination of n-pentane, the number of structural isomers formed is:

(1) 4

(2) 3

(3) 2

(4) 1

The compound which exhibits optical isomerism is:

1. CH₃CHOHCH₃

2. (CH₃)₂CHCH₂CH₃

3. CH₃CHClCH₂CH₃

4. CH₃CCl₂CH₂CH₃

Benzaldoxime exists in how many forms?

1. 1

2. 2

3. 3

4. 4