Rate of teaction depends upon

a)Number of effective collision
b)Concentration of the reactant
c)Temperature
d)All of these

The correct answer is "d) All of these."

The rate of a chemical reaction depends on several factors, including the number of effective collisions, the concentration of the reactants, and the temperature.

a) Number of effective collisions: For a reaction to occur, reactant molecules must collide with each other. However, not all collisions lead to a reaction. Only those collisions that have sufficient energy and proper orientation result in successful reactions. The more frequent and effective collisions there are, the higher the reaction rate.

b) Concentration of the reactant: The concentration of reactant molecules affects the frequency of collisions in a chemical reaction. Higher concentrations mean more reactant molecules are present in a given volume, increasing the likelihood of collisions and, therefore, increasing the reaction rate.

c) Temperature: Higher temperatures generally result in faster reaction rates. This is because temperature affects the kinetic energy of particles, causing them to move faster and collide more frequently. Additionally, higher temperatures increase the proportion of reactant molecules with sufficient energy to overcome the activation energy barrier, leading to an increased reaction rate.

Therefore, all three factors (number of effective collisions, concentration of reactants, and temperature) influence the rate of a chemical reaction.