Speed of decomposition of H2O2 is reduced by

Question

Speed of decomposition of H2O2 is reduced by (A)  Na2CO3  (B)  NaOH  (C) alcohol (D)  Pt

Tardigrade Admin · Accepted Answer

Pure hydrogen peroxide is unstable and decomposes on heating H2O2+H2O2 xrightarrow[]2H2O+O2 Δ H=-196kJ The decomposition of H2O2 is retarded (ie, stability is increased) by adding a small amount of acid, glycerol, alcohol or acetanilide (-ve catalyst).

Q. Speed of decomposition of $H_{2} O_{2}$ is reduced by

$N a_{2} C O_{3}$

$N a O H$

alcohol

$Pt$

Pure hydrogen peroxide is unstable and decomposes on heating $H_{2} O_{2} + H_{2} O_{2} 2 H_{2} O + O_{2}$ $Δ H = - 196 k J$ The decomposition of $H_{2} O_{2}$ is retarded (ie, stability is increased) by adding a small amount of acid, glycerol, alcohol or acetanilide (-ve catalyst).

Q. Speed of decomposition of H2​O2​ is reduced by

Na2​CO3​

NaOH