Choose the incorrect statement among the foll | vedclass

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Question

(D) Due to the presence of bulky aryl groups,the nucleophilic attack on the $sp^2$ carbon of the $>C=O$ group experiences steric hindrance,decreasing

Vedclass · Accepted Answer

$D$

Vedclass · Answer

(D) Due to the presence of bulky aryl groups,the nucleophilic attack on the $sp^2$ carbon of the $>C=O$ group experiences steric hindrance,decreasing the reaction rate.$(B)$ Fehling's solution is a mild oxidizing agent and cannot oxidize benzaldehyde.$(C)$ Ethanal contains $\alpha$-hydrogens which are acidic due to the electron-withdrawing effect of the carbonyl group,allowing for enolization.$(D)$ The $-NO_2$ group at the $p$-position exerts a strong $-R$ (resonance) and $-I$ (inductive) effect,which increases the partial positive charge on the carbonyl carbon,making it more susceptible to nucleophilic attack. Thus,$p$-nitrobenzaldehyde is more reactive than benzaldehyde. Therefore,statement $D$ is incorrect.

Similar Questions

How many total isomers of aldehydes are possible for the molecular formula $C_5H_{10}O$?

Which of the following on reaction with conc. $NaOH$ gives an alcohol?

Which of the following pairs cannot be differentiated by Tollens' reagent?

Which among the following compounds give a yellow solid when reacted with $NaOI/NaOH$? Choose the correct answer from the options given below $:$
$(A)$ $CH_3-CH(OH)-C_2H_5$
$(B)$ $CH_3-CH_2-CH_2-OH$
$(C)$ $CH_3-CO-C_2H_5$
$(D)$ $CH_3-COOH$
$(E)$ $CH_3-CH_2-CHO$

Assertion : The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Reason : There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

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