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.

The stability of the given compounds, in descending order, is:

A.		B.
C.		D.

1. A > B > C > D
2. D > B > C > A
3. D > C > B > A
4. A > B > D > C

Which among the following is most basic?

1.  

2. 

3. 

4. 
 

1.
2.
3.
4.

The configuration of given tartaric acid is

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R

The IUPAC name of the above-mentioned compound is - 

1. (N-Bromo)-3-methyl-2-oxobutanamide

2. (N-Bromo)-2-oxo-4-methylbutanamide

3. (N-Bromo)-1,2-dioxo-3-methylbutanamine carboxamide

4. (N-Bromo)-1-oxo-2-methylpropane

Which of the following $\mathrm{\sigma }$-bonds participate in hyperconjugation?