Give simple chemical tests to distinguish between the pairs of compound
phenol and Benzoic acid

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Solution

Phenol does not react with sodium hydrogen carbonate and benzoic acid gives effervescence of carbon dioxide gas upon reaction with sodium hydrogen carbonate.
Phenol gives violet colour with ferric chloride solution but benzoic acid does not give such colour.

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Give simple chemical tests to distinguish between the following pairs of compounds.

(i) Propanal and Propanone

(ii) Acetophenone and Benzophenone

(iii) Phenol and Benzoic acid

(iv) Benzoic acid and Ethyl benzoate

(v) Pentan-2-one and Pentan-3-one

(vi) Benzaldehyde and Acetophenone

(vii) Ethanal and Propanal

Give simple chemical tests to distinguish between the following pairs of compounds.

Propanal and propanone.

Acetophenone and benzophenone

Phenol and benzoic acid

Benzoic acid and ethyl benzoate

Pentan - 2 - one and pentan - 3 - one

Benzaldehyde and acetophenone

Ethanal and propanal

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