When H2S is passed into a solution of iron (III) chloride, the solution turns

When H2S is passed into a solution of iron (III) chloride, the solution turns

  • A.
    Pale green
  • B.
    Pale red
  • C.
    Brown
  • D.
    Colourless
Correct Answer: Option A
Explanation

A reaction between Iron (iii) chloride and Hydrogen sulphide leads to the reaction

2FeCl3(aq) + H2S(g) → 2FeCl2(aq) + 2HCl(aq) + S(s)

The colour change is from REDDISH BROWN to PALE GREEN.

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