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During electrolysis of molten sodium chl...

During electrolysis of molten sodium chloride, the time required to produce 0.1 mol of chlorine gas using a current of 3A is

A

55 minutes

B

107.2 minutes

C

220 minutes

D

330 minutes

Text Solution

Verified by Experts

The correct Answer is:
B
m = Zit (mass of 1 mole of `Cl_(2)` gas = 71)
`t = (m)/(ZI) " "(because "mass of 0.1 mole of Cl"_(2) "gas" = 7.1 "g mol"^(-1))`
`= (7.1)/((71)/(2 xx 96500) xx 3)(2 Cl^(-) rarr Cl_(2) + 2e^(-)) = (2 xx 96500 xx 7.1)/(71 xx 3) = 6433.33 "sec" = 107.2` min
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