An inorganic substance on heating liberates oxygen and turns an acidified solution of KI brown and also reduces acidified `KMnO_4`. The substance is
An inorganic substance on heating liberates oxygen and turns an acidified solution of KI brown and also reduces acidified `KMnO_4`. The substance is
A. `SO_2`
B. `KNO_3`
C. `H_2O_2 `
D. `SO_3`
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Correct Answer - C
`2H_2O_2overset(Delta)to 2H_2O+O_2`
`2KI+H_2O_2to 2KOH+I_2`
`2KMnO_4 + 3H_2SO_4 +5H_2O_2 to K_2SO_4 + 2MnSO_4 + 8H_2O +5O_2`
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