Chemistry · Group 13 to Group 18 Elements

Colour of the solution when reacts with is:

Colour of the solution when \( K I \) reacts with \( B r_{2} \) is:

  • A. pale yellow
  • B. reddish-brown
  • C. black
  • D. none of the above

Step-by-step solution

The reaction of KI (potassium iodide) with Br2 (bromine) produces I2 (iodine) via the redox reaction: 2KI + Br2 → 2KBr + I2. Iodine in aqueous solution appears reddish-brown, so the solution color is reddish-brown.
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