Question

the rate of chemical reaction increases on powdering the reactants.why?​

Answer 1

Answer:

Powdering the reactants reduces its size.

Thus the surface area to the volume of the reactants increased and the ferquency of successful collision between the reactants also increase.

Hence the rate of reaction increase.

Answer 2

Answer:

When the solid substances are added in powdered form the surface area of reactants increases which causes to increase the number of their collisions and results in the increase in the rate of chemical reaction.