Which of the following act as reducing agents? (i) PO4 3– (ii) SO3 (iii) PO3 2– (iv) NH3
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Answer:
SO3
Explanation:
Since it can undergo an increase as well as decrease in its oxidation state, it can act both as oxidising and reducing agent. On the other hand, oxidation state of sulphur in SO3 is +6 which is the maximum it can have
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