Test Index

MHTCET 26 Apr 2025 Shift 2 Paper

Question : 92 of 150

Marks: +1, -0

2 \mathrm{H}_{2} \mathrm{O}_{2(\ell)} \xrightarrow{\text { glycerol }} 2 \mathrm{H}_{2} \mathrm{O}_{(\ell)}+\mathrm{O}_{2(g)}

Solution:

Concept:

Glycerol slows down the decomposition of hydrogen peroxide, so it acts as an inhibitor.

Explanation:

Hydrogen peroxide naturally decomposes into water and oxygen:

2\mathrm{H}_{2}\mathrm{O}_{2(\ell)} \rightarrow 2\mathrm{H}_{2}\mathrm{O}_{(\ell)} + \mathrm{O}_{2(g)}

A catalyst would speed up this reaction, while an inhibitor slows it down.

Glycerol is commonly added to hydrogen peroxide solutions to stabilise them and prevent rapid decomposition.

Hence, glycerol reduces the rate of decomposition instead of increasing it.

It is not a promoter or a heterogeneous/homogeneous catalyst in this reaction.

Answer:

Option B: Inhibitor

Go to Question:

Prev Question

Next Question