Redox Reactions And Electrochemistry Ques 688
Question: Which of the following act as reducing agents-
(i) $ PO_4^{3-} $
(ii) $ SO_3 $
(iii) $ PO_3^{2-} $
(iv) $ NH_3 $
Options:
A) (i), (ii) and (iii)
B) Only (iii)
C) (i), (iii) and (iv)
D) (iii) and (iv)
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In (i) and (ii) both P and S are in highest oxidation state. In (iii) and (iv) ; P has oxidation state of+4 which can be oxidized to +5 state, while in case of $ NH_3 $ nitrogen has oxidation state of -3 which can be oxidised.
