1.

During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 ampere is

Answer»

55 minutes
110 minutes
220 minutes
330 minutes

Solution :`2CL^(-)toCl_(2)(g)+2E^(-)`
To PRODUCE 1 mol of `Cl_(2)`, charge required
`=2F=2xx96500C`
`THEREFORE`To produce 0.1 mol of `Cl_(2)`, charge required
`=2xx96500xx0.1=19300C`
`Q=Ixxt`
`thereforet=Q=(19300)/(3)sec=(19300)/(3xx60)`min
`=107.22"min"cong110`min


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