JEE Mains 2020 Model Paper 4 New Pattern

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Question : 42 of 75

Marks: +1, -0

If same quantity of electricity is passed through three electrolytic cells containing aqueous solutions of FeSO4 , Fe2(SO4)2 and Fe(NO3)−3, then which of the following is wrong.

The amount of iron deposited in FeSO4 and Fe2(SO4)3 are equal
The amount of iron deposited in FeSO4 is 1.5 times to that of iron deposited in Fe(NO3)3.
The amount of iron deposited in Fe2(SO4)3 and Fe(NO3)3 are equal
The same amount of gas is evolved in all three cases at the anode.

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