Q22 / 150 · MHT CET 2022 (10 Aug Shift 2) · Chemistry

How long will it take to produce $5.4 \mathrm{~g}$ of $\mathrm{Ag}$ from molten $\mathrm{AgCl}$ by passing $5 \mathrm{amp}$ current? (Molar mass Ag $=108 \mathrm{~g} \mathrm{~mol}^{-1}$ ) 965

  • A
    1930 second
  • Correct answer
    B
    965 second
  • C
    193 second
  • D
    9650 second

Solution

$\mathrm{W}=\frac{\mathrm{E}}{\mathrm{F}} \mathrm{It}$ $\begin{aligned} & 5.4=\frac{108}{96500} \times 5 \times t \\ & t=965 \mathrm{sec}\end{aligned}$

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

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