Discussion Forum



1)

Which among the following reactions is an example of pseudo first-order reaction?


A) inversion of cane sugar

B) Decomposition of $H_{2}O_{2}$

C) Conversion of cyclopropane to propane

D) Decomposition of $N_{2}O_{2}$

Answer:

Option A

Explanation:

The reactions in which the molecularity is two but they confirm  to the first order are known as pseudo  first order  reaction or pseudo unimolecular reactions.

 e.g, inversion of cane sugar

$C_{12}H_{22}O_{11}+H_{2}O$  $\underrightarrow{H^{+}}$     $C_{6}H_{12}O_{6}+C_{6}H_{12}O_{6}$

Sucrose(cane sugar)                                      Glucose    Fructose

The concentration of water remains constant