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Acidity of Alcohols and Phenols

A compound 'X...

Question

A compound 'X' is acidic and it is soluble in $N a O H$ solution, but insoluble in $N a H C O_{3}$ solution.
Compound 'X' also gives violet colour with neutral $F e C l_{3}$ solution. The compound 'X' is :

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Solution

Phenol is weakly acidic, hence reacts with $N a O H$ to form salt but doesn't react with $N a H C O_{3}$ to liberate $C O_{2}$ .

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Similar questions

Q. An aromatic compound is partially soluble in water but soluble in aqueous solution of

N a O H

. The compound is insoluble in aqueous solution of

{N a H C O}_{3}

. It gives a deep red colour with

{F e C l}_{3}

solution. The compound is:

Q. On mixing the aqueous solutions of compounds

(A)

(B)

, an insoluble compound

(C)

is produced along with another water soluble compound

(D)

(A)

on heating gives brown

N O_{2}

gas with a cracking noise. An aqueous solution of compound

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H_{2} S

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H C l

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gives yellow ppt. with

K_{2} C r O_{4}

Q. Choose the correct answer form the alternatives given.
A solution of a compound

X

H C l

on treatment with a solution of

B a C l_{2}

gives a white precipitate of compound

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H N O_{3}

H C l

X

imparts golden yellow colour to the flame.

X (solution in dilute HCl) (imparts golden yellow colour) + B a C l_{2} ⟶ Y w h i t e p p t C o n c . H N O_{3} + - ------- \to C o n c H c l I n s o l u b l e

What are compounds

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Y

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Q. An organic compound “A” on treatment with benzenesulfonyl chloride gives compound B. B is soluble in dil. NaOH solution. Compound A is:

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