Home/ Questions/Q 442342
Next
In Process
Gayatri Fakaruddin Sura
Asked: 2022-11-09T04:17:31+05:30 In:

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.
image
The decrease in ht eenergy of activation in hte presence of catalyst is
A. Z
B. `Z-P`
C. `Y-Z`
D. `Z-X`

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.
image
The decrease in ht eenergy of activation in hte presence of catalyst is
A. Z
B. `Z-P`
C. `Y-Z`
D. `Z-X`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – BCorrect Answer – B

    • 0
Elias Koushtubh Choudhary
Asked: 2022-11-05T13:00:33+05:30 In:

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?
image
A. `A.B.C`
B. `C.B.A`
C. `B.C.A`
D. `A=B=C`

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?
image
A. `A.B.C`
B. `C.B.A`
C. `B.C.A`
D. `A=B=C`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – B
    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.) Correct Answer – B
    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.)

    • 0
Uday Yadav
Asked: 2022-11-01T18:08:48+05:30 In:

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
According to the adsorption theroy of catalysis, the rate of reaction increases because
A. According to the activation energy of the reaction.
B. Concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption.
C. Adsorption increases the activation energy of the reaction.
D. Adsorption decreases the activation of the energy of the reaction.

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
According to the adsorption theroy of catalysis, the rate of reaction increases because
A. According to the activation energy of the reaction.
B. Concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption.
C. Adsorption increases the activation energy of the reaction.
D. Adsorption decreases the activation of the energy of the reaction.
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – BCorrect Answer – B

    • 0
Kailash Neerendra Sachdev
Asked: 2022-10-31T14:49:03+05:30 In:

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
Which is incorrect for a catalyst?
A. A catalyst can initiate a reaction.
B. A catalyst remains uncharged in quality and composition at the end of reaction.
C. It does not alter the position of equilibrium in a reversible reaction.
D. Catalyst are sometimes very specific in reaction.

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
Which is incorrect for a catalyst?
A. A catalyst can initiate a reaction.
B. A catalyst remains uncharged in quality and composition at the end of reaction.
C. It does not alter the position of equilibrium in a reversible reaction.
D. Catalyst are sometimes very specific in reaction.
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A
    A catalyst cannot initiate reaction. Correct Answer – A
    A catalyst cannot initiate reaction.

    • 0