Which of the following is the most stable carbocation

1. 

2. 

3. CH2=CH-CH2

4. CH2=CH

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 53%
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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

Subtopic:  Acidic & Basic Character |
 78%
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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

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 83%
From NCERT
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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

Subtopic:  Acidic & Basic Character |
 54%
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Which of the following happens to be the carbanion with highest stability?

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 79%
From NCERT
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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

Subtopic:  Nomenclature |
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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

Subtopic:  Structural Isomers |
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Which of the following carbocations is expected to be most stable?

1. 
2. 
3.  
4. 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 73%
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A group that deactivates the benzene ring towards electrophilic substitution but which directs the incoming group principally to the o- and p-position is.

1. -NH2                   
2. -Cl
3. -NO2                   
4. -C2H5

Subtopic:  Types of Reaction |
 52%
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In the given conformation C2 is rotated about C2-C3 bond anticlockwise by an angle of 120° then the conformation obtained is

1. Fully eclipsed conformation

2. Partially eclipsed conformation

3. Gauche conformation

4. Staggered conformation

Subtopic:  Conformational Isomers |
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