Study carefully the reaction represented by the equation below. 2H2O 2(l) → O 2(g) +...

WAEC 1992

Study carefully the reaction represented by the equation below. 2H2O 2(l) → O 2(g) + 2H2O(l). Which of the following will not reaction increase the reaction rate?

A. Heating the hydrogen peroxide
B. Adding a pinch of MnO₂ to the reactant
C. increasing the concentration of the H₂O₂
D. Adding water to the reactant
E. Exposing the reactant to sunlight

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Correct Answer: Option D

Explanation

Reaction of decomposition of hydrogen peroxide is very slow in moderate temperatures without the presence of a catalyst.

It can be sped up by increasing the temperature, which triggers the reaction of thermal decomposition.

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Study carefully the reaction represented by the equation below. 2H2O 2(l) → O 2(g) +...

Correct Answer: Option D

Explanation

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