Which of these statements are correct ?

Carbonyl compound is amphoteric in character

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Acid catalyst makes the carbonyl carbon more electrophilic

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basic catalyst makes the nucleophilic attack more faster.

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All of these

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Solution

The correct option is D All of these
All the three statements are correct.
(A) Carbonyl compound is amphoteric in character. It can react with acids as well as bases.
(B) Acid catalyst makes the carbonyl carbon more electrophilic. The carbonyl oxygen is protonated which in turn withdraws electron density from carbonyl carbon atom.
(C) Basic catalyst makes the nucleophilic attack more faster.

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Similar questions

Which of the following statement is true regarding esterification of a carboxylic with an alcohol ?

(i) It is carried out in presence of a strong acid which acts as a catalyst.

(ii) The strong acid makes the carbonyl carbon more electrophilic, and hence causes the alcohol, a strong nucleophile to attack on the carbonyl carbon.

(iii) The strong acid makes the carbonyl group more electrophilic which is thus attacked easily by an alcohol. a weak nucleophile.

(iv) Esterification can be done even in absence of a strong, acid.

Q. Statement- I: Carbonyl compounds take part in nucleophilic addition reactions.
Statement- II: These reactions are initiated by nucelophilic attack at the electron deficient carbon atom.

Q. Assertion :Alkenes undergo electrophilic addition whereas aldehydes and ketones undergo nucleophilic addition. Reason: In alkenes the double bond joins two carbon atoms and there is no resultant polarity. In carbonyl compounds, the carbonyl group is highly polar and the high partial positive charge on the C atom makes it subsceptible to nucleophilic attack.

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