A: Cyclopentadienyl anion is much more stable than allyl anion.

R: Cyclopentadienyl anion is aromatic while allyl anion is only resonance stabilized.

1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

3. Assertion is a true statement but Reason is false.

4. Both Assertion and Reason are false statements.

 

A: Benzene and naphthalene are aromatic hydrocarbons.

R: Benzene and naphthalene contain the same number of delocalized $\mathrm{\pi }$ electrons.

1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

3. Assertion is a true statement but Reason is false.

4. Both Assertion and Reason are false statements, then mark (4).

A: Alkyl groups show +l effect.

R: Halogens are -l and +R groups.

1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

3. Assertion is a true statement but Reason is false.

4. Both Assertion and Reason are false statements.

A:  is the most stable alkene due to 12-$\alpha$ hydrogen atoms

R: 'H' is more electronegative than carbon.

1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion

3. Assertion is a true statement but Reason is false.

4. Both Assertion and Reason are false statements. 

A: A compound having a non-superimposable mirror image is optically active.

R: Optically active compound must contain chiral carbon.

1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.

2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

3. Assertion is a true statement but Reason is false

4. Both Assertion and Reason are false statements.

Most stable carbanion intermediate in following is :

1. 

2. 

3. 

4. All of these are equally stable

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

The pair that represents chain isomers is :-

1.
2.
3.
4.

The pair among the following that does not contain position isomers is -

1.
2.
3.
4.

Which of the following compound exhibit optical isomerism?

1. 

2. 

3. 

4. All of these