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JEE Main2013Chemistryd and f Block ElementsActual

When a small amount of KMnO ₄ is added to concentrated H ₂ SO ₄ , a green oily compound is obtained which is highly explosive in nature. Compound may be :

Options

  1. AMnSO ₄
  2. BMn ₂ O ₇
  3. CMnO ₂
  4. DMn ₂ O ₃

Correct answer

B. Mn ₂ O ₇

Step-by-step solution

KMnO ₄ reacts with H ₂ SO ₄ to form Mn ₂ O ₇ which is highly explosive substance. 2 KMnO ₄+ H ₂ SO ₄ K ₂ SO ₄ + Mn ₂ O ₇+ H ₂ O

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