What weight of HNO_3 is needed to convert 5 g I_2 into HIO_3 , HNO_3 NO ?

MHT CET Chemistry question

What weight of is needed to convert 5 g into , ?

Answer: (A)

involves 10 e, so 5 g (0.01969 mol) loses 0.1969 mol e; gains 3 e per mole, so

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Question ID VK-065736