Redox Reactions And Electrochemistry Ques 739

Question: The same quantity of electricity was passed through two electrolytic cells containing a salt of metal X and zinc sulphate solution respectively using platinum electrode. 0.468 g of metal X and 1.532 g of Zn were deposited. The equivalent mass of X is (At. wt. of Zn is 65.4 u)

Options:

A) 9.98 g/equiv

B) 3.2 g/equiv

C) 5.9 g/equiv

D) 0.99 g/equiv

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Gram equivalent of metal =geq. of Zn 0.468EM=1.532EZn

0.468EM=1.532×265.4 [EZn=65.42] EM=9.98,g/eq



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