Statements : A catalyst enhances the rate of a reactgion . Expabnations : The energy foactivation of the reaction is lowered in presence of a catarge of the coagualnt ion.
A
S is correct but E is wrong .
B
S is worong but E is correct
C
Both S and E are correct and E is correct explanation of (S) .
D
Both S and E are correct but E is not correct explanation of S.
Text Solution
Verified by Experts
The correct Answer is:
C
Explanation is correct reason for statement .
Topper's Solved these Questions
SURFACE CHEMISTRY
P BAHADUR|Exercise Exercise 1A|2 Videos
SURFACE CHEMISTRY
P BAHADUR|Exercise Exercise 4|3 Videos
SOLID STATE
P BAHADUR|Exercise Exercise 9|1 Videos
Similar Questions
Explore conceptually related problems
(A) A catalyst increases the rate of areaction. (R)In presence of a catalyst, the activation energy of the reaction increases.
Assertion: A catalyst increases the rate of a reaction. Reason: In presence of a catalyst, the activation energy of the reaction decreases.
Statements : A collode gets coagulated by addition of an electrolyte . . Expabnations : The rate of coagultion depends on the magnitude and sing of the charge of the coagulant ion.
Statements : A catalyst doesnot alter the equilibrium constant os a reaction . Expabnations : A catalyst complex with the reactants and provides an alternate path wirh a lower energy of activation for the reacton . The forwaord and forwad and reverse reactions are affected to the same extent .
Assertion (A) : Catalyst increases the rate of a reaction Reason (R) : It lowers the threshold energy of the reaction.
Given the following graph. (a) Calculate Delta H for the reaction and energy of activation for the forward and backward reaction. (b) Curve (2) is the energy profile in the presence of a catalyst. What is the energy of activation for the two reaction in the presence of a catalyst? ( c) Will the catalyst change the extent of the reaction?