Q.

Electrolysis of aq. K2SO4 using inert electrodes is carried out by passing 10 amperes for 9650 amperess. Weight of the substance obtained at anode is

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a

32 g

b

16 g

c

8 g

d

64 g

answer is C.

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Detailed Solution

Sulphate ion can never get oxidized further (Sulphur is in its highest O.S).Thus at anode O2 gas is liberated;2H2O→O2+4H++4e ;∴WO2=EitF=EqF WO2=8×10×965096500 WO2=8 g
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