Q.

During electrolysis of molten sodium chloride, time required to produce 0.20 mole of chlorine gas using a current of 6 amperes is

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a

65 minutes

b

220 minutes

c

107 minutes

d

330 minutes

answer is C.

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Detailed Solution

At anodeCl−⟶12Cl2+e−For 0.5 mole → 96500 Coulombs1⟶965000.50.2⟶965000.5×0.2=38600C∴Q = I × t⇒38600 = 6 × tt(sec)=386006=6433.33Time (minute) = 107 minutes (approx.)
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