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NEET
Exam
NEET
Subject
Chemistry
Chapter
d and f Block Elements

NEET · Chemistry · d and f Block Elements

What happens to potassium permanganate when heated to 513 K?

What happens to potassium permanganate when heated to 513 K?

Options

  1. AIt sublimes
  2. BIt decomposes
  3. CIt vaporizes
  4. DIt melts

Correct answer

B. It decomposes

Step-by-step solution

Potassium permanganate forms dark purple (almost black) crystals which are isostructural with those of KClO4 . The salt is not very soluble in water (6.4 g/100 g of water at 293 K), but when heated it decomposes at 513 K.
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