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 $ .