Which of the following happens to be the carbanion with highest stability?

 

The IUPAC name of the following compounds

 is

1. 1-Bromocyclohexane carboxylic acid

2. 3-Bromocyclohexanoic acid

3. 3-Bromohepatnoic acid

4. 3-Bromocyclohexane carboxylic acid

Trans-2-butene on bromination using CS₂ gives which dibromoderivative

1. (R), (R)-2,3-dibromobutane

2. (S),(S)-2,3-dibromobutane

3. Racemic-2,3-dibromobutane

4. Meso-2,3-dibromobutane

Which of the following carbocations is expected to be most stable?

The decreasing order of the stability of the given ions is-

(I).		(II).
(III).

The correct order of basicities of the following compounds is:

1. 2>1>3>4         2. 1>3>2>4

3. 3>1>2>4         4. 1>2>3>4

Hybridisation of N in pyrrole  is

1. sp                                2. sp²

3. sp³                              4. sp³d

The correct stability order for the following species is:

I.
II.
III.
IV.

1. II > IV > I > III

2. II > I > III > IV

3. II > I > IV > III

4. I > III > II > IV

The most stable carbanion among the following is

The configuration of given tartaric acid is

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R