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Preparation of Carboxylic Acids

Product 'B'...

Question

Product $^{'} B^{'}$ and phenol can be differentiated by:
a) $N a O H$
b) Litmus paper
c) $B r_{2} / H_{2} O$
d) $N a h C O_{3}$

b

and

d

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a, b

and

d

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a, c

and

d

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c

and

d

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Solution

The correct option is A $b$ and $d$
R.E.F image
Solution -
Product (B) is benzoic acid
which can be differentiated from
phenol by $N a H C O_{3}$
$\to$ Both by litmus paper test changes
blue litmus to red.
$\to$ Both (phenol & benzoic acid) reacts with
$N a O H$ & $B r_{2} / H_{2} O$ These reagents are
not used for differentiation.

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Similar questions

2 N a C l + C a C O_{3} \to N a_{2} C O_{3} + C a C l_{2}

C a C O_{3} Δ - \to [A] + [B]

N a C l + N H_{3} + [B] + H_{2} O \to [C] + [D]

2 [C] \to N a_{2} C O_{3} + H_{2} O + [B]

P h N H_{2}

P h N H M e

A

N H_{4} C l

D

C O_{2}

B

C

+ N a O H \to N a C l + N H_{3} + H_{2} O

N H_{3} + C O_{2} + H_{2} O \to (B)

+ N a C l \to (C) + N H_{4} C l

\to N a_{2} C O_{3} + H_{2} O + (D)

Δ = ∣ ∣ ∣ ∣ ∣ \begin{matrix} 2 & a + b + c + d & a b + c d a + b + c + d & 2 (a + b) (c + d) & a b (c + d) + c d (a + b) a b + c d & a b (c + d) + c d (a + b) & 2 a b c d \end{matrix} ∣ ∣ ∣ ∣ ∣

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