ElectrochemistryHard
Question
If same quantity of electricity is passed through three electrolytic cells containing FeSO4, Fe2(SO4)3 and Fe(NO3)3, then
Options
A.the amount of iron deposited in FeSO4 and Fe2(SO4)3 are equal
B.the amount of iron deposited in FeSO4 is 1.5 times of the amount of iron deposited in Fe(NO3)3.
C.the amount of iron deposited in Fe2(SO4)3 and Fe(NO3)3 are equal
D.the same amount of gas is evolved in all three cases at the anode.
Solution
Fe2+ + 2e- → Fe [in FeSO4] ; Fe3+ + 3e- → Fe [in Fe2 (SO4)3]
Fe3+ + 3e- Fe [in Fe (NO3)3]
Amount of Fe deposited in FeSO4 =
Amount of Fe deposited in Fe2(SO4)3 =
Fe3+ + 3e- Fe [in Fe (NO3)3]
Amount of Fe deposited in FeSO4 =
Amount of Fe deposited in Fe2(SO4)3 =
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