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  • Which of the following will not act as oxidising agents? (i) {CrO}_{3} (ii) {MoO}_{3} (iii) {WO}_{3} (iv) {CrO}_{4}^{2}

Which of the following will not act as oxidising agents?

(i) \text {CrO}_{3}

(ii) \text {MoO}_{3}

(iii) \text {WO}_{3}

(iv) \text {CrO}_{4}^{2-}

Answers (1)

The answer is the option (ii, iii) For a species to act as an oxidizing agent the metal should be in a higher oxidation state whereas stability is exhibited by its lower oxidation state. Since, higher oxidations states of \text { W and Mo} are more stable; therefore, they do not act as oxidizing agents.

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