Assertion (A): The following intramolecular aldol reaction occurs.

Reason (R ): `(CHO)` is a better acceptor than `(C==O)`.

Assertion (A): The following intramolecular aldol reaction occurs. Reason (R ): The carbanion does not add to C-4 because a strained four-membered ring would result.

Assertion (A): The following intramolecular aldol reaction occurs. Reason (R ): The carbanion does not add to C-4 because a strained four-membered ring would result.

Consider following intramolecular aldol condensation reaction X can be

Assertion (A): The following cross Cannizzaro reaction occurs. Reason (R ): Rate of reaction is: Rate = K["Aldehyde(I)"]["Aldehyde(II)"][overset(Θ)(OH)] and bimolecular.

Assertion (A): The following reaction occurs. Reason (R ): The semicarbazone of (A) (pentan-2-one) exists in two geometrical isomers.

Assertion (A): The following reaction occurs. Reason (R ): The semicarbazone of (A) (pentan-2-one) exists in two geometrical isomers.

What is the product of the following intramolecular aldol condensation reaction? [qquad H] [qquad O]

Assertion (A): Sn reacts with HCl to produce H_(2) gas. Reason (R ): Sn is a better reducing agent than H_(2) gas.

Assertion (A): Sn reacts with HCl to produce H_(2) gas. Reason (R ): Sn is a better reducing agent than H_(2) gas.