Which of the following act as reducing agents? (i) PO 43- (ii) SO 3 (iii) PO 32- (iv) NH 3

Question

Which of the following act as reducing agents? (i) PO 43- (ii) SO 3 (iii) PO 32- (iv) NH 3 (A) (i), (ii) and (iii) (B) Only(iii) (C) (i), (iii) and (iv) (D) (iii) and (iv)

Tardigrade Admin · Accepted Answer

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.

Q. Which of the following act as reducing agents?
(i) $P O_{4}^{3 -}$
(ii) $S O_{3}$
(iii) $P O_{3}^{2 -}$
(iv) $N H_{3}$

(i), (ii) and (iii)

Only(iii)

(i), (iii) and (iv)

(iii) and (iv)

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 $N H_{3}$ , nitrogen has oxidation state of $- 3$ which can be oxidised.

Q. Which of the following act as reducing agents? (i) PO43−​ (ii) SO3​ (iii) PO32−​ (iv) NH3​