NEET UG 2010 — Chemistry Organic Chemistry

2010mcqmedium

Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is

Official previous-year question

Held on 30 Apr 2010 · Verified 9 Jul 2026.

Options

A
$\mathrm{CH}_3 \mathrm{COOCH}_3$
B
$\mathrm{CH}_3 \mathrm{CONH}_2$
C
$\mathrm{CH}_3 \mathrm{COOCOCH}_3$
D
$\mathrm{CH}_3 \mathrm{COCl}$

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Solution

Key Idea Lesser the electron density of acyl carbon atom, more will be the susceptibility of nucleophile to attack it. The $\mathrm{Cl}$ atom has strong $-I$ effect and weakest $+\mathrm{R}$ effect because of the weak $\pi$ -bond between the small sized $\mathrm{C}$ -atom and large sized $\mathrm{Cl}$ atom. Thus, in $\mathrm{CH}_3 \mathrm{COCl}$ , acyl carbon has least electron density and hence, more susceptible for nucleophilic attack.

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NEET UG Organic Chemistry in other years

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NEET UG 2010 — Chemistry Organic Chemistry

2010mcqmedium

Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is

Official previous-year question

Held on 30 Apr 2010 · Verified 9 Jul 2026.

Options

A
$\mathrm{CH}_3 \mathrm{COOCH}_3$
B
$\mathrm{CH}_3 \mathrm{CONH}_2$
C
$\mathrm{CH}_3 \mathrm{COOCOCH}_3$
D
$\mathrm{CH}_3 \mathrm{COCl}$

Did you get this right?

Solution

Your note

NEET UG Organic Chemistry in other years

Keep practicing Organic Chemistry

Work through every NEET UG Organic Chemistry PYQ, year by year.

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NEET UG 2010 — Chemistry Organic Chemistry

Options

Did you get this right?

Solution

Your note

NEET UG Organic Chemistry in other years

More NEET UG Organic Chemistry questions

Other Chemistry topics for NEET UG

Physical Chemistry

Inorganic Chemistry

Keep practicing Organic Chemistry

NEET UG 2010 — Chemistry Organic Chemistry

Options

Did you get this right?

Solution

Your note

NEET UG Organic Chemistry in other years

More NEET UG Organic Chemistry questions

Other Chemistry topics for NEET UG

Physical Chemistry

Inorganic Chemistry

Keep practicing Organic Chemistry