The rate of reaction on increasing the surface area of reactants.

decreases

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increases

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remains constant

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Solution

The correct option is B increases
Increasing the surface area of the reactants, increases the rate of reaction.
The increase in surface area increases the number of collisions per second and thereby increases the rate of reaction.

For example, with a dilute mineral acid, powdered zinc will react faster as compared to zinc granules.

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Similar questions

Q. The rate of reaction on increasing the surface area of reactants.

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Every chemical reaction has its own characteristic rate. It is affected by some important factors. The most important factors are 1 , temperature, 2 , 3 and surface area out of these factors rise/decrease in temperature, light quantity, rise in the concentration of reactants and surface area 4 the rate of reaction. Whereas as 5 alter the rate of reaction.

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