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Structure of Amines & Optical Activity

Carboxylic ac...

Question

Carboxylic acid doesnot give reactions of carbonyl group?

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Solution

Yes. This is due to the lone pairs on oxygen atom attached to hydrogen atom in the -COOH group are involved in resonance and hence making the carbon atom less electrophilic. Hence, carboxylic acids do not give the reaction of carbonyl groups.

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Similar questions

Q. Assertion :Carboxylic acids do not give reactions of

> C = O

- O H

group. Reason: Carboxylic acids contain replaceable

H^{+}

Q. a) Give resonating structure of carboxylic group?
b) Give chemical reaction to obtain the following.
i) Carboxylic acid from Grignard reagent.
ii) Benzoic acid from ethyl benzoate.
iii) Benzamide from benzoic acid.
c) Give resonating structures of propenoic acid?
d) How will you distinguish aldehyde, ketone & carboxylic acid.

Q. Carboxylic acids do not give the characteristic reaction of

> C = O

group because of:

Q. (a) Account for the following :

(i)

C l - C H_{2} C O O H

is a stronger acid than

C H_{3} C O O H

.

(il) Carboxylic acids do not give reactions of carbonyl group.

(b) Write the chemical equations to illustrate the following name reactions :

(i) Rosenmund reduction

(ii) Cannizzaro's reaction

(c) Out of

C H_{3} C H_{2} - C O - C H_{2} - C H_{3}

C H_{3} C H_{2} - C H_{2} - C O - C H_{3}

, which gives iodoform test?

Q. Carboxylic acid does not give friedel-craft Reaction?

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