Given below two statements:

Assertion(A): A compound having a non-superimposable mirror image is optically active.
Reason(R): Optically active compound must contain chiral carbon.
 
1. Both (A) and (R) are True and (R) correctly explains (A).
2. Both (A) and (R) are True but (R) does not correctly explain (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.

Subtopic:  Stereo Isomers |
Level 3: 35%-60%
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Please attempt this question first.

The most stable carbanion intermediate in the following is:

1. 2.
3. 4. All of these are equally stable.
Subtopic:  Reaction Intermediates ; Preparation & Properties |
Level 3: 35%-60%
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The IUPAC name of the above mentioned compound is - 

1. Citric acid

2. 3-Hydroxy pentane-1,5-dioic acid

3. 2-Hydroxypropane-1,2,3-tricarboxylic acid

4. 2-Carboxy-2-hydroxy propane-1,3-dicarboxylic acid

Subtopic:  Nomenclature |
 82%
Level 1: 80%+
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The pair that represents chain isomers is :-

1.
2.
3.
4.

Subtopic:  Structural Isomers |
 63%
Level 2: 60%+
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The pair among the following that does not contain position isomers is -

1.
2.
3.
4.
Subtopic:  Structural Isomers |
 68%
Level 2: 60%+
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Which of the following compound exhibit optical isomerism?

1. 

2. 

3. 

4. All of these

Subtopic:  Stereo Isomers |
 73%
Level 2: 60%+
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Arrange the following in order of their reactivity toward electrophilic substitution reaction:

I. II.
III. Iv.
 
1. I > II > III > IV 2. IV > III > II > I
3. II > I > IV > III 4. II > I > III > IV
Subtopic:  Nucleophile & Electrophile |
 62%
Level 2: 60%+
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Which of the following compound requires minimum energy for free rotation across double bond between ring :

1. 2.
3. 4.

Subtopic:  Aromaticity & Polarity |
 50%
Level 3: 35%-60%
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The molecule that exhibits non-planarity is:

1.  2. 
3.  4. 
Subtopic:  Aromaticity & Polarity |
 69%
Level 2: 60%+
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The aromatic compound among the following is:-

1. 2.
3. 4.
Subtopic:  Aromaticity & Polarity |
 77%
Level 2: 60%+
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