Redox Reactions And Electrochemistry Ques 713

Question: A current of 2.0 A when passed for 5 hours through a molten metal salt deposits 22.2 g of metal of atomic weight 177. The oxidation state of the metal in the metal salt is

Options:

A) + 1

B) + 2

C) + 3

D) + 4

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Emetal= (Wt of metal × 96500)/No of coulombs =(22.2×96500)(2×5×60×60)=59.5 Oxidation no. of metal =17759.5=+3



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