Q15 / 170 · Manipal (MET) 2021 · Chemistry

Ozone when react with potassium iodide solution liberates certain product, which turns starch paper blue. The liberated substance is :

  • A
    oxygen
  • Correct answer
    B
    iodine
  • C
    hydrogen iodide
  • D
    potassium hydroxide

Solution

When potassium iodide react with ozone it oxidise Kl and liberate $\mathrm{I}_2$ it turns starch paper blue.

Hence, the correct answer is option: 'B'.

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