If a reaction is nth order the half-life period ________ of the initial concentration of the reactants.

varies inversely as (n-1)th power

varies directly as (n-1)th power

In a reaction, 2A2 + B2 2A2B, when the reactant A will disappear?

half the rate that B will decrease

the same rate that B will decrease

double the rate that A2B will form

twice the rate that B will decrease

For reaction system given below, volume is suddenly reduced to half of its value by increasing the pressure on it. If the reaction is of first order with respect to O2 and second order with respect to NO, what will be the change in the rate of reaction?2NO(g) + O2(g) + 2NO2(g)

increase to four times of its initial value

diminish to one-fourth of its initial value

diminish to one-eight of its initial value

increase to eight times of its initial value

increase to four times of its initial value

Explore topic-wise MCQs in Organic Chemistry.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.	If a reaction is n^th order the half-life period ________ of the initial concentration of the reactants.
A.	is independent
B.	varies inversely as (n-1)<sup>th</sup> power
C.	varies inversely as n<sup>th</sup> power
D.	varies directly as (n-1)<sup>th</sup> power
Answer» C. varies inversely as n<sup>th</sup> power

Discussion

2.	The rate of decomposition of a substance increases concentration of substance at same temperature. Find out order of reaction.
A.	1
B.	2
C.	3
D.	0
Answer» C. 3

Discussion

3.	The rate of reaction that does not involve gases, is not dependent on _____________
A.	pressure
B.	temperature
C.	concentration
D.	catalyst
Answer» B. temperature

Discussion

4.	In a reaction, 2A₂ + B₂ 2A₂B, when the reactant A will disappear?
A.	half the rate that B will decrease
B.	the same rate that B will decrease
C.	double the rate that A2B will form
D.	twice the rate that B will decrease
Answer» E.

Discussion

5.	Rate = If the volume of reaction vessel is suddenly reduced to ( frac{1}{4} )^th of initial value. How new rate will be affected?
A.	( frac{1}{10} )
B.	( frac{1}{8} )
C.	8
D.	16
Answer» E.

Discussion

6.	For reaction system given below, volume is suddenly reduced to half of its value by increasing the pressure on it. If the reaction is of first order with respect to O₂ and second order with respect to NO, what will be the change in the rate of reaction? 2NO(g) + O₂(g) + 2NO₂(g)
A.	diminish to one-fourth of its initial value
B.	diminish to one-eight of its initial value
C.	increase to eight times of its initial value
D.	increase to four times of its initial value
Answer» D. increase to four times of its initial value

Discussion

Explore topic-wise MCQs in Organic Chemistry.

If a reaction is nth order the half-life period ________ of the initial concentration of the reactants.

The rate of decomposition of a substance increases concentration of substance at same temperature. Find out order of reaction.

The rate of reaction that does not involve gases, is not dependent on _____________

In a reaction, 2A2 + B2 2A2B, when the reactant A will disappear?

Rate = If the volume of reaction vessel is suddenly reduced to ( frac{1}{4} )th of initial value. How new rate will be affected?

For reaction system given below, volume is suddenly reduced to half of its value by increasing the pressure on it. If the reaction is of first order with respect to O2 and second order with respect to NO, what will be the change in the rate of reaction?2NO(g) + O2(g) + 2NO2(g)

If a reaction is n^th order the half-life period ________ of the initial concentration of the reactants.

In a reaction, 2A₂ + B₂ 2A₂B, when the reactant A will disappear?

Rate = If the volume of reaction vessel is suddenly reduced to ( frac{1}{4} )^th of initial value. How new rate will be affected?

For reaction system given below, volume is suddenly reduced to half of its value by increasing the pressure on it. If the reaction is of first order with respect to O₂ and second order with respect to NO, what will be the change in the rate of reaction?
2NO(g) + O₂(g) + 2NO₂(g)