For the reaction, 2 A + B → products, when the concentration of A and B both were doubled, the rate of the reaction increased from 0.3 m o l L - 1 s - 1 to 2.4 m o l L - 1 s - 1 . When the concentration of A alone is doubled, the rate increased from 0.3 m o l L - 1 s - 1 to 0.6 m o l L - 1 s - 1 . Which one of the following statements is correct?

Order of the reaction with respect to B is 2

Total order of the reaction is 4

Order of the reaction with respect to A is 2

Order of the reaction with respect to B is 1

E M B I B E

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 20

MEDIUM

NEET

IMPORTANT

Earn 100

In presence of $HCl,$ sucrose gets hydrolysed into glucose and fructose. The concentration of sucrose was found to reduce from $0.4 M$ to $0.2 M$ in $1$ hours and to $0.1 M$ in $2$ hours. The order of the reaction is:

50% studentsanswered this correctly

Important Questions on Chemical Kinetics

HARD

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 21

Two substances

A (t_{1 / 2} = 5 \min)

and

B (t_{1 / 2} = 15 \min)

are taken in such a way that initially,

[A] = 4 [B] .

The time after which both the concentrations will be equal is: (Assume that the reaction is first order)

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 22

For the reaction

2 A + 3 B ⟶

products, when

A

is in excess and on changing the concentration of

B

from

0.1 M

to

0.4 M

, the rate becomes doubled, Thus, order with respect to

B

would be:

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 23

From different sets of data of

t_{1 / 2}

at different initial concentration say

{}^{'}a^{'}

for a given reaction, the product

(t_{1 / 2} \times a)

is found to be constant. The order of the reaction is:

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 24

Which of the following curves represent a

1^{st}

order reaction:

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 25

The time elapsed of a certain reaction between

33 %

and

67 %

completion of a first-order reaction is

30

minutes. What is the approximate time needed for

25 %

completion?

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 26

A reaction

2 A + B \overset{k}{\to} C + D

is first order with respect to

A

and

2 nd

order with respect to

B

. The initial concentration

(t = 0)

of

A

is

C_{0}

while

B

is

2 C_{0}

. If at

t = 30

minutes the concentration of

C

is

C_{0} / 4

then rate expression at

t = 30

minutes is:

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 27

In a certain gaseous reaction between $X$ and $Y, X + 3 Y \to {XY}_{3}$ The initial rates are reported as follows:

$[X]$	$[Y]$	Rate
$0.1 M$	$0.1 M$	$0.002 {Ms}^{- 1}$
$0.2 M$	$0.1 M$	$0.002 {Ms}^{- 1}$
$0.3 M$	$0.2 M$	$0.008 {Ms}^{- 1}$
$0.4 M$	$0.3 M$	$0.018 {Ms}^{- 1}$

The rate law is.

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>Exercise 5>Q 28

If for a reaction in which $A (g)$ converts to $B (g)$ the reaction carried out at constant $V & T$ results into the following graph.

Question Image

Learn and Prepare for any exam you want !

|

|

|

|

|

|

|

|

In presence of HCl, sucrose gets hydrolysed into glucose and fructose. The concentration of sucrose was found to reduce from 0.4 M to 0.2 M in 1 hours and to 0.1 M in 2 hours. The order of the reaction is:

Important Questions on Chemical Kinetics

Learn and Prepare for any exam you want !

In presence of $HCl,$ sucrose gets hydrolysed into glucose and fructose. The concentration of sucrose was found to reduce from $0.4 M$ to $0.2 M$ in $1$ hours and to $0.1 M$ in $2$ hours. The order of the reaction is: