Question

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.

Answer 1

$1\to$concentration of reactant

$2\to$ligh quantity

$3\to$catalysts

$4\to$increases

$5\to$catalysts

The rate of chemical reaction increases with increase in the concentration of reactant. Also the physical state effect the rate of chemical reaction. gaseous state increases. The rate of chemical reaction. catalyst reduced the activation energy and thereby increase the rate by providing a shorter path.