Redox Reactions And Electrochemistry Ques 456

Question: When $ CuSO_4 $ reacts with $ KI $ , the oxidation number of $ Cu $ changes by [BHU 1997]

Options:

A) 0

B) - 1

C) 1

D) 2

Show Answer

Answer:

Correct Answer: C

Solution:

$ \overset{+2}{\mathop{CuSO_4}},+2KI $ - $ K_2SO_4+CuI_2 $ $ 2,CuI_2\xrightarrow{,}\overset{+,1}{\mathop{Cu_2I_2}},+I_2 $



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