1. Tardigrade
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  3. Chemistry
  4. Assertion: : Benzaldehyde is more reactive than ethanal towards nucleophilic attack. Reason: The overall effect of - I and +R effect of phenyl group decreases the electron density on the carbon atom of > C = O group in benzaldehyde.

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Q. Assertion : : Benzaldehyde is more reactive than ethanal towards nucleophilic attack.
Reason : The overall effect of $- I$ and $+R$ effect of phenyl group decreases the electron density on the carbon atom of $> C = O$ group in benzaldehyde.

AIIMSAIIMS 2008Aldehydes Ketones and Carboxylic Acids

Solution:

Benzaldehyde is more reactive than ethanol towards nucleophilic attack.
The overall effect of $- I$ and $+ R$ effect of phenyl group decreases the electron density on the carbon atom of $> C =$ O group in benzaldehydes.