Which applies to the collision theory?

a. particles need to collide in order to react.

b. particles may obtain successful collisions in any molecular orientation.

c. temperature increase causes kinetic energy of particles to decrease.

d. reactions do not have to begin with collision of molecules or particles.

Answer : Option A) Particles need to collide in order to react.

Explanation : According to the collision theory, for a reaction to occur, there must be a collision taking place between the two reactant particles in the system. This confirms the option A as the correct answer.

A.Particles need to collide in order to react.

Explanation:

Particles need to collide in order to react applies to the collision theory.

its first and third is your answer i did the qustion the fourth isnt right

i have no clue hope you find the answer