1.

In this reaction SO_(2) is (i) SO_(2)+2H_(2)S to 3S+3H_(2)O (ii) 3SO_(2)+Cr_(2)O_(7)^(2-)+2H^(+) to 2Cr^(3+)+3SO_(4)^(2-)+H_(2)O

Answer»

OXIDIZING agent both in (i) and (II)
oxidizing agent in (i) and REDUCING agent in (ii)
reducing agent both in (i) and (ii)
reducing agent in (i) and oxidizing agent in (ii)

ANSWER :B


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