Chemical Kinetics Test

Result

Chemical Kinetics Test - 1

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

For a reaction A → products, initial conc. of A is 2M. After 10 minutes reaction is 10% completed. If r = k[A] then half life is approximately.

A
0.693

B
69.3 min

C
66 min

D
0.0693 min
Question 2
1 / -0

The rate of formation of C is the following reaction 2A + B → 2C is 10 Kg min^–1. Hence the rate of disappearance of A will be (kg/min)

A
10

B
8

C
6.4

D
3.2
Question 3
1 / -0

In the presence of catalyst E_a is lowered by 2Kcal at 27°C. Hence rate will be

A
20 times

B
14 times

C
28 times

D
2 times

Question 4

1 / -0

For reaction A₂ + 2B → 2AB. Then order w.r.t. A₂ and B are respectively

[A2]	[B]	Rate (M sec–1)
0.1	0.2	1 × 10–2
0.2	0.2	2 × 10–2
0.2	0.4	8 × 10–2

1, 2

2, 1

1, 1

2, 2

Question 5
1 / -0

The rate of a reaction gets doubled when the temperature changes from 7°C to 17°C. By what factor will it change when the temperature change from 17°C to 27°C?

A
2

B
2.1

C
1.91

D
2.3
Question 6
1 / -0

Two first order reactions have half lives in the ratio of 3 : 2. Calculate the ratio of time intervals t₁ : t₂, the time t₁ and t₂ are the time period for 25% and 75% completion for the first and second reaction respectively.

A
0.311 : 1

B
0.420 : 1

C
0.273 : 1

D
0.119 : 1
Question 7
1 / -0

A substance (initial concentration, a) reacts according to zero-order kinetics. The time it takes for the completion of the reaction is

A
a/k

B
a/2k

C
k/a

D
2k/a

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Chemical Kinetics Test - 1

Result

Chemical Kinetics Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

0.693

69.3 min

66 min

0.0693 min

Question 2

10

8

6.4

3.2

Question 3

20 times

14 times

28 times

2 times

Question 4

1, 2

2, 1

1, 1

2, 2

Question 5

2

2.1

1.91

2.3

Question 6

0.311 : 1

0.420 : 1

0.273 : 1

0.119 : 1

Question 7

a/k

a/2k

k/a

2k/a

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.