Q. The minimum energy level necessary to permit a reaction to occur is :

A) Internal energy
B) Threshold energy
C) Activation energy
D) Free energy
Explanation

(b)
The minimum energy barrier required to be crossed to bring in a chemical change is called threshold energy level.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.