Question

When a cube of manganese oxide was added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese oxide
was not used up in the reaction. Which of the following is likely to decrease the rate of the reaction?
Using a larger amount of solution
O Increasing the mass of the cube
O Chilling the hydrogen peroxide solution
O Smashing the cube into pieces

Answer 1

Answer: chilling the hydrogen peroxide solution

This will Decrease the rate of reaction

Answer 2

Chilling of hydrogen peroxide solution will cause a decrease in the rate of the reaction. The correct option is C.

What is rate of reaction?

The reaction rate or in other words the rate of reaction is the rate at which a chemical reaction proceeds and is usually characterized as proportional to the boost in product concentration per unit time and the decrease in reactant concentration per unit time. The rates of reaction can vary greatly.

The reaction rate is determined by the amount of the reactants, the temperature, and the catalyst.

As in the given reaction, the cube of manganese oxide was added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese oxide was not used up in the reaction.

By chilling the hydrogen peroxide, the reaction will get altered as the temperature will not be appropriate for the reaction.

Thus, the correct option is C.

For more details regarding reaction rate, visit:

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