Chemical Kinetics Test

Result

Chemical Kinetics Test - 27

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
4 / -1

Rate of first order reaction depends upon

A
time

B
concentration of reactant

C
temperature

D
all the three
Question 2
4 / -1

A

B

C

D
Question 3
4 / -1

For the reaction, 2A + B → Products, the following initial rates were obtained at various initial concentrations:

A
Rate = k[A]²[B]^o

B
Rate = k[A][B]

C
Rate = k[A]²[B]

D
Rate = 2 k[A][B]²
Question 4
4 / -1

For the above reaction, the specific rate constant is

A
23 sec⁻¹

B
0.46 l mol⁻¹ sec⁻¹

C

D

Solution
Question 5
4 / -1

If initial concentration is reduced to 1/4th in a zero order reaction, the time taken for half the reaction to complete

A
remains same

B
becomes 4 times

C
becomes one-fourth

D
doubles

Solution
Question 6
4 / -1

The rate constant for the reaction 2N₂O₅ → 4NO₂ + O₂ is 3.0 × 10^–5 sec^–1. If the rate is 2.40 × 10^–5 mol litre^–1 sec^–1, then the concentration of N₂O₅ (in mol litre^–1) is

A
1.4

B
1.2

C
0.04

D
0.8

Solution
Question 7
4 / -1

For a first order reaction we have k = 100 sec^-1. The time for completion of 50% reaction is:

A
1m sec

B
4 m sec

C
7 m sec

D
10 m sec

Solution
Question 8
4 / -1

In the first order reaction, 75% of the reactant disappeared in 1.386 h. Calculate the rate constant of reaction.

A

B

C

D

Solution
Question 9
4 / -1

The decomposition of a substance follows first order kinetics. Its concentration is reduced to 1/8th of its initial value in 24 minutes. The rate constant of the decomposition process is

A

B

C

D

Solution
Question 10
4 / -1

The reaction A → B follows first order kinetics. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 hour. What is the time taken for conversion of 0.9 mole of A to produce 0.675 mole of B?

A
1 hour

B
0.5 hour

C
0.25 hour

D
2 hours

Solution