A sulphur containing species that cant be a reducing agent is

Question

A sulphur containing species that cant be a reducing agent is (A)  SO2  (B)  SO32-  (C)  H2SO4  (D)  S2-

Tardigrade Admin · Accepted Answer

If the species is a reducing agent, it means it can be oxidised easily thus it should have oxidation number less than maximum values of oxidation number. In SO2,SO42- and S2-, the oxidation number of S is + text 4,+ text 4,+ 6, and - 2 respectively. Therefore, SO2,SO32- and S2- can be reducing agent but SO42- cant be.

Q. A sulphur containing species that cant be a reducing agent is

$S O_{2}$

$S O_{3}^{2 -}$

$H_{2} S O_{4}$

$S^{2 -}$

Q. A sulphur containing species that cant be a reducing agent is

SO2​

SO32−​

H2​SO4​

S2−

$S O_{2}$

$S O_{3}^{2 -}$

$H_{2} S O_{4}$

$S^{2 -}$