Home
Class 12
CHEMISTRY
Assertion: Benzaldehyde is more reactive...

Assertion: Benzaldehyde is more reactive than ethanal towards nucleophilic attact.
Reason : The overall effect of- `l` and `+R` effect of phenyl group decrease the electron density on the carbon atom of `gtC = O` group in benzaldehyde.

A

If Both assertion and reason are true reason is the correct explation of the assertion.

B

If Both assertion and reason are true but reason is not the correct explation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALDEHYDES, KETONES AND CARBOXYLIC ACID

    A2Z|Exercise AIPMT/NEET Questions|43 Videos

  • ALDEHYDES, KETONES AND CARBOXYLIC ACID

    A2Z|Exercise AIIMS Questions|40 Videos

  • ALDEHYDES, KETONES AND CARBOXYLIC ACID

    A2Z|Exercise Section A (Topicwise question|3 Videos

  • ALCOHOLS, PHENOLS AND ETHERS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • BIOMOLECULES

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Assertion : Benzaldehyde is less reactive than propanal towards nucleophilic addition reactions. Reason : Benzaldehyde is less sterically hindred.

Assertion(A):Ethene is more reative than propene towards electrophilic attack. Reason: Propyne is stablised by hyperconjugation effect.

Knowledge Check

  • Assertion: Benzaldehyde is less reactive than ethanal towards nucleophilic attach. ltbr. Reason: All the carbon atoms of benzaldehyde are sp^(2) -hybridized.

    A
    if both assertion and reson are true, and reason is the true explanation of the assertion.
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertion.
    C
    if assertion is true, but reason is false.
    D
    If both assertion and reason are false.

  • Assertion (A): Benzaldehyde is less reactive than ethanal towards nucleophilic addition reactions. Reason (R): Ethanal is more sterically hindered.

    A
    Both A and Rare true and R is the correct explanation of A
    B
    Both A and R are true but R is NOT the correct explanation of A
    C
    A is true but R is false
    D
    A is false and R is true

  • Assertion. Propene is more reactive than ethene towards electrophilic addition reactions Reason. Hyperconjugation effect of the CH_3 group increases the electron density in the double bond

    A
    If both assertion and reason are true, and reason is the true explanation of the assertion.
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertion.
    C
    If assertion is true, but reason is false.
    D
    If both assertion and reason are false

    • Similar Questions

    Explore conceptually related problems

    Assertion : Anhydrides are more reactive than ester for nucleophilic substitution Reason : R.COO– is better leaving group than R–O–

    Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on benzene nucleus.

    Assertion: Acetanilide is more reactive than aniline towards electrophilic substitution reactions. Reason: The activating effect of NHCOCH_3 is less than that of amino group

    Assertion (A) Benzaldehyde is less reactive in comparison to ethonal towards nucleophilic attack. Reason (R ) All the carbon atoms of benzaldehyde are sp^(2) - hybridised.

    (A) p-methoxy benzaldehyde is less recative than bensaldehyde towards cyanohydrin formation. (R) The +R effect methoxy group increases the electron deficiency of the carbonyl carbon.

    Home
    Profile