Redox Reactions And Electrochemistry Question 120
Question: A current 2.0 A is passed for 5 hours through a molten metal salt deposits 22 g of metal (At. wt. =177). The oxidation state of the metal in the metal salt is [KCET 1996]
Options:
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1
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2
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3
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4
Show Answer
Answer:
Correct Answer: C
Solution:
$ {E_{metal}}=\frac{Weightof,metal\times 96500}{Number,of,coulombs} $ $ =\frac{22.2\times 96500}{2\times 5\times 60\times 60}=59.5 $ Oxidation number of the metal $ =\frac{177}{59.5}=+,3 $
BETA
