Substances which alter the velocity of a reaction by mere presence, without undergoing any change in mass and compossition are termed catalyst and the phenomenon is known as catalysis
In homogenous catalytic reactions, there are three alternative paths A, B, and C (shown in figure). Which one of the following indicates the relative ease with which the reaction can take place?

Options

A. `A.B.C`
B. `C.B.A`
C. `B.C.A`
D. `A=B=C`

Answer

B

Explanation

Activation energy in the different path lies in the following sequence: `CltBltA`
Lesser is the activation energy, greater is the ease with which the reaction can take place.
`:. CgtBgtA` (Decreasing ease with which the reaction can take place.)