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

      

1.	Four (4)	2.	Five (5)
3.	Six (6)	4.	Seven (7)

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

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

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