Redox Reactions And Electrochemistry Ques 431
Question: Oxidation number of $ P $ in $ Mg_2P_2O_7 $ is [CPMT 1989; MP PMT 1995]
Options:
A) + 3
B) + 2
C) + 5
D) - 3
Show Answer
Answer:
Correct Answer: C
Solution:
$ \overset{,*}{\mathop{Mg_2P_2O_7}}, $ $ 4+2x-2\times 7=0 $ ; $ 2x=14-4=10 $ $ 2x=10 $ ; $ x=\frac{10}{2}=+,5 $ .
