A solution of (+)-1 chloro-1-phenylethane in toluene racemizes slowly in the presence of small amount of SbCl5 due to formation of
1. carbanion 2. carbene
3. free radical 4. carbocation
The strongest acid, among the compounds given below, is:
1. HC≡CH
2. C6H6
3. C2H6
4. CH3OH
Which of the following is the strongest nucleophile?
1. Br-
2. OH-
3. CN-
4. CH3O-
Which order for basic character of amine is correct for following compounds?
1. 3>1>2>5>4 2. 3>2>1>5>4
3. 3>1>2>4>5 4. 3>2>1>4>5
Which of the following is the most stable carbocation
1.
2.
3.
4.
In the following compounds
The order of acidity is-
1. III>IV>I>II
2. I>IV>III>II
3. II>I>III>IV
4. IV>III>I>II
The correct increasing order of carbon-carbon bond length in the given compounds is:
1. III<II<I<IV
2. IV<I<II<III
3. I<II<III<IV
4. I<IV<III<II
In the following compounds,
The order of basicity is
1. IV>I>III>II
2. III>I>IV>II
3. II>I>III>IV
4. I>III>II>IV
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-Bromoheptanoic acid
4. 3-Bromocyclohexanecarboxylic acid