IUPAC name of  is:

1. 5-methylhexanol            2. 2-methylhexanol          

3. 2-methylhex-3-enol        4. 4-methylpent-2-enol     

IUPAC name of,

 is:

1. 4-butyl-hexa-2,5-dien-1-al

2. 5-vinyloct-3-en-1-al

3. 5-vinyloct-5-en-8-al

4. 3-butyl-1,4-hexadien-6-al

IUPAC name of the following compound is:
 

1. But-2-ene-2,3-diol

2. Pent-2-ene-2,3-diol

3. 2-Methylbut-2-ene-2,3-diol

4. Hex-2-ene-2,3-diol

But-2-ene exhibits cis-trans-isomerism due to

1. rotation around C₂-C₃ double bond

2. rotation around C₃-C₄ sigma bond

3. rotation around C₁-C₂ bond

4. restricted rotation around C=C bond

If optical rotation produced by the compound (i) is +52° then that produced by that the compound (ii) is:

1. -52°                2. +52°

3. 0°                   4. unpredictable

Which of the following pairs are enantiomers?                

1. 

2. 

3. 

4. 

In the following, the most stable conformation of n-butane is                

Which of the following has asymmetric carbon atom?

Stereoisomers (geometrical or opticals) which are neither superimposable nor mirror image to each other are called:

(1) enantiomers             

(2) mesomers

(3) tautomers               

(4) diastereomers

Diastereomers can be separated by:

(a) fractional distillation               (b) simple distillation

(c) electrophoresis                      (d) all of these