1.

For the given aqueous reactions, which of the statement(s) is (are) true ?

Answer»

The first reaction is a REDOX reaction
White precipitate is `Zn_(3)[Fe(CN)_(6)]_(2)`
Addition of FILTRATE to STARCH solution GIVES bluecolour
White precipitate is soluble in NaOH solution.

Solution :(a,c,d)
`2KI+2K_(3)underset((Fe^(3+)))([Fe(CN)_(6)]) underset(H_(2)SO_(4))overset(dil.) to 2K_(4) underset((Fe^(2+))([Fe(CN)_(6)])+I_(2)`
`I_(2)+ underset("(Excess)")(KI to KI_(3))`


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