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

Options

  1. AThe first reaction is a redox reaction.
  2. BWhite precipitate is Zn ₃ [ Fe ( CN )₆ ]₂ .
  3. CAddition of filtrate to starch solution gives blue colour.
  4. DWhite precipitate is soluble in NaOH solution.

Correct answer

A. The first reaction is a redox reaction.

Step-by-step solution

(a) (b) (c) When the filterate containing KI ₃ add to start solution, the dissolved I ₂ will produce a blue colour solution. (d)

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