Q16 / 90 · JEE Main 2018 (16 Apr Online) · Chemistry

When 9.65 ampere current was passed for 1.0 hour into nitrobenzene in acidic medium, the amount of p-aminophenol produced is:

A
109.0 g
B
98.1 g
Correct answer
C
9.81 g
D
10.9 g

Solution

${4 e}^{-} + 4 H^{+} + C_{6} H_{5} {NO}_{2} \to C_{6} H_{4} (OH) ({NH}_{2}) + H_{2} O$

Molecular Weight of p-aminophenol = 109 g

$W_{(D e p o s i t e d)} = Z I t$

= $\frac{E}{F} \times I \times t (E = \frac{M}{4})$

$W = \frac{109 \times 9.65 \times 60 \times 60}{4 \times 96500} = 9.81 g$

Hence, the correct answer is option: 'C'.

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