1.

(A) underset(O_(2))overset(4KOH)rarr underset(("Green"))(2B) + 2H_(2)O (B) overset(4HCl)rarr 2B + 2H_(2)O (C ) underset(KI)overset(H_(2)O)rarr 2(A) + 2KOH + (D) In the above sequence of reactions (A) and (D) respectively are:

Answer»

`KI and KMnO_(4)`
`KI and K_(2)MnO_(4)`
`KIO_(3) and MnO_(2)`
`MnO_(2) and KIO_(3)`

Solution :`underset((A))(MnO_(2)) underset(O_(2))OVERSET(4KOH)rarr underset((B) ("Green"))(2K_(2)MnO_(4)) + 2H_(2)O`
`underset((B))(3K_(2)MnO_(4)) overset(4HCl)rarr underset((C )("Purple"))(2KMnO_(4)) + 2H_(2)O`
`underset((C ))(2KMnO_(4)) underset(KI)overset(H_(2)O)rarr underset((A))(2MnO_(2)) + 2KOH + underset((D))(KIO_(3))`


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