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Fuel Cells

What is the a...

Question

What is the amount of chlorine evolved, when 2A of current is passed for 30 minutes in an aqueous solution of NaCl?

1.32gm

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4.56gm

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9.81gm

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12.6gm

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Solution

The correct option is A 1.32gm
Total Charge Supplied(Q) $= I \times t$
= 2 x 30 x60
= 3600 C
$N a C l \to {N a}^{+} + {C l}^{-}$
96500 C liberate ${C l}_{2}$ = Eq.Wt of ${C l}_{2}$ = 35.5 g
3600 C liberates ${C l}_{2}$ = $\frac{35.5}{96500} \times 3600$ = 1.32 gm

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