Redox Reactions And Electrochemistry Ques 433

Question: Oxidation number of $ P $ in $ KH_2PO_2 $ is [CPMT 1987; MH CET 1999]

Options:

A) + 1

B) + 3

C) + 5

D) - 4

Show Answer

Answer:

Correct Answer: A

Solution:

In $ \overset{,*}{\mathop{KH_2PO_2}}, $ $ 1+2+x+(-2\times 2)=0 $ $ 3+x-4=0 $ ; $ x=+1 $ .



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