Which of the following will not act as oxidizing agents?

(a) CrO3(b) MoO3(c) WO3(d) CrO42-

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

A species can act as oxidising agent only when metal is present in high oxidation state but iower oxidation stale showstability. As higher oxidations states of W and Mo are more stable, therefore they will not act as oxidising agents.