Which of the following is observed when a solution of iron (III) chloride is mixed with a solution of sodium hydroxide?

  • A A gas is evolved
  • B A deep blue precipitate is formed
  • C The resultant solution turns green turns
  • D A brown precipitate is formed
jamb 1998chemistry

The correct answer is D. A brown precipitate is formed

iron(III) chloride is a yellow solution

sodium hydroxide is colourless

iron(III) hydroxide is a reddish brown precipitate

sodium chloride is colourless

So in the reaction, yellow solution when added to sodium hydroxide forms reddish brown precipitate that is insoluble in excess sodium hydroxide.

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