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Chemistry · 2024 · 1 mark
Aldehydes, Ketones and Carboxylic AcidsNomenclature and Structure of Carboxyl Group1 markAnalyseassertion reason
CBSE 2024 · Region 1 · Set 1 · Q15
Assertion (A): The pK_a of ethanoic acid is lower than that of Cl - CH_2- COOH. Reason (R): Chlorine shows electron withdrawing (-I) effect which…
Assertion (A) : The $\displaystyle \mathrm{pK}_{\mathrm{a}}$ of ethanoic acid is lower than that of $\displaystyle \mathrm{Cl}-\mathrm{CH}_{2}-\mathrm{COOH}$.
Reason (R) : Chlorine shows electron withdrawing (-I) effect which increases the acidic character of $\displaystyle \mathrm{Cl}-\mathrm{CH}_{2}-\mathrm{COOH}$.
Official answer
(D)
Assertion (A) is false, but Reason (R) is true.
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