The IUPAC name of   

1. 2,3-diethyl butane

2. 3,4-dimethyl hexane

3. 3-methyl pentane

4. 2-ethyl 3-methyl pentane

Hybridisation of N in pyrrole  is

1. sp                               
2. sp²
3. sp³                             
4. sp³d

The most reactive of these compounds towards sulphonation is

1. Toluene                2. Chlorobenzene

3. Nitrobenzene        4. m-Xylene

In the above compound, arrange the nitrogen according to their decreasing basic strength.

1. 1>2>3>4

2. 4>3>1>2

3. 2>4>1>3

4. 3>4>1>2

What is the correct stability order for the following species?

I.
II.
III.
IV.

Which of the following carbanions is the most stable?

1.		2.
3.		4.

How many geometrical isomers are possible of the following?

 CH₃-CH=CH-CH=CH-CH₃

1. 2             2. 3

3. 4             4. 6

Most stable radical is

1. 

2. 

3. 

4. 
 

1.
2.
3.
4.

Which of the following is the most stable carbonium ion?

1. 
2. 
3. 
4. 
 

1.
2.
3.
4.