Question
What is the role of glycerol in the decomposition of hydrogen peroxide?
MHT CET
Chemistry
Hydrogen
2026
MHT CET 2026 (16 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. It increases the reaction rate.
- B. It reduces the reaction rate.
- C. It increases the enthalpy of the reaction.
- D. It increases the rate of collisions between reactant molecules.
Answer
B. It reduces the reaction rate.
Step-by-step solution
Hydrogen peroxide (H_2O_2) decomposes into water and oxygen gas upon standing or heating. To prevent or slow down this decomposition, certain substances are added which act as negative catalysts (inhibitors). Glycerol, along with urea and acetanilide, is commonly used as a stabilizer for hydrogen peroxide. It acts as a negative catalyst and retards the decomposition process. Therefore, glycerol reduces the reaction rate of the decomposition of hydrogen peroxide. Answer: It reduces the reaction rate.
Related: Chemistry — Hydrogen · All PYQ Banks