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

- The first reaction is a redox reaction.
- White precipitate is $\mathrm{Zn}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{2}$.
- Addition of filtrate to starch solution gives blue colour.
- White precipitate is soluble in $\mathrm{NaOH}$ solution.
Solution

(b)

(c) When the filterate containing $\mathrm{KI}_{3}$ add to start solution, the dissolved $\mathrm{I}_{2}$ will produce a blue colour solution. (d)

Asked in: JEE Advanced 2012 (Paper 2)