Assertion :All molecular collisions lead to the formation of products.
Reason :Reactant molecules undergo chemical change irrespective of their collision.

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of (A)
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

D

Explanation

Only effective collisions result into product formation i.e. collisions in which molecules collide with sufficient kinetic energy (called threshold energy) and proper orientation, so as to facilitate breaking of bonds between reacting species and formation of new bonds to form products,