Why does but-2-ene exhibit cis-trans isomerism?

1. Rotation around the C₂-C₃ double bond

2. Rotation around the C₃-C₄ sigma bond

3. Rotation around the C₁-C₂ bond

4. Restricted rotation around the 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

Number of monochlorinated products (excluding stereo-isomers) obtained from the given reaction are :

Which of the following pairs are enantiomers?                

1. 

2.  

3. 

4. 

How many structural isomers are possible for the compound having molecular formula C₃H₅Br₃?

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

1.		2.
3.		4.

Which of the following acid does not exhibit optical isomerism?

1. Maleic acid                           
2. $\mathrm{\alpha }$-amino acid

3. Lactic acid                             
4. Tartaric acid                             

The prefix used for -SH group as per the IUPAC system is-

1. Mercapto

2. Thiol

3. Sulfide

4. None of the above

  Which of the following molecules exhibits chirality?   

1. 2-Methylhexane

2. 3-Methylhexane

3. Neopentane

4. Isopentane

The property by virtue of which a compound can turn the plane of polarization of light is known as:

1. Photolysis              

2. Phosphorescence

3. Optical activity           

4. Polarization