Redox Reactions And Electrochemistry Ques 698
Question: In the following reaction $ 4P+3KOH+3H_2O\xrightarrow{{}}3KH_2PO_2+PH_3 $
Options:
A) phosphorus is both oxidised and reduced.
B) only phosphorus is reduced.
C) phosphorus is not oxidized
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ 4P+3KOH+3H_2O\to 3KH_2PO_2+PH_3 $ O.N of $ P=0 $ , In $ KH_2PO_2 $ it is + 1, In $ PH_3 $ it is $ -3 $ . Hence P is oxidised and reduced.
