An inorganic substance liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is:

$H g O$
$H_{2} O_{2}$
$K n O_{3}$
$P b {(N O_{3})}_{2}$

Question

An inorganic substance liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is:

$H g O$
$H_{2} O_{2}$
$K n O_{3}$
$P b {(N O_{3})}_{2}$

Toppr Admin · Accepted Answer

Reactions-2H2O2heat-x2212-x2212-x2192-2H2O-O2 -2KI-H2O2Acidic-x2212-x2212-x2212-x2212-x2192-2KOH-I2GivesgoldenyellowcolourtoflameAcidified KMnO4 acts as an oxidising agent when it is decolourised-xA0-H2O2-O-x2192-H2O-O2

An inorganic substance liberates oxygen on heating and turns an acidic solution of KI brown and reduces acidified KMnO4 solution. The substance is:HgOH2O2KnO3Pb(NO3)2

Reactions:2H2O2heat−−→2H2O+O2 ;2KI+H2O2Acidic−−−−→2KOH+I2GivesgoldenyellowcolourtoflameAcidified KMnO4 acts as an oxidising agent when it is decolourised, H2O2+O→H2O+O2

An inorganic substance liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is:

$H g O$
$H_{2} O_{2}$
$K n O_{3}$
$P b {(N O_{3})}_{2}$

Reactions:
$2 H_{2} O_{2} h e a t - - \to 2 H_{2} O + O_{2}$ ;
$2 K I + H_{2} O_{2} A c i d i c - --- \to 2 K O H + I_{2} G i v e s g o l d e n y e l l o w c o l o u r t o f l a m e$
Acidified $K M n O_{4}$ acts as an oxidising agent when it is decolourised,
$H_{2} O_{2} + O \to H_{2} O + O_{2}$