Substances which alter the velocity of a reaction by mere presence, wi – InterviewSolution

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1.	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 For the reaction `(ArarrB+C)` , the energy profile diagram is given in the figure below. The decrease in ht eenergy of activation in hte presence of catalyst isA. ZB. `Z-P`C. `Y-Z`D. `Z-X`
Answer» Correct Answer - BCorrect Answer - B

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