Q40 / 159 · NTA Abhyas (NEET) 2020 · Chemistry · d and f Block Elements

Acidified potassium permanganate is dropped over sodium peroxide taken in a round bottom flask as room temperature, vigorous reaction takes place to produce

  • A
    Hydrogen peroxide
  • B
    Mixture of hydrogen and oxygen
  • C
    A colourless gas hydrogen
  • Correct answer
    D
    A colourless gas dioxygen

Solution

Here a colourless gas O2 is formed and the reaction is as follows
2KMnO4+5Na2O2+8H2SO4→K2SO4+2MnSO4+5Na2SO4+8H2O+5O2

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

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