Chemical Kinetics-Rate of a Chemical Reaction (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 6 of 14

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Question number: 1

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

Molecularity of a reaction is?

Choices

Choice (4) Response

a.

A whole number

b.

Can be zero

c.

Never a whole number

d.

Can have a fractional value

Question number: 2

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

The order of a reaction can be deduced from?

Choices

Choice (4) Response

a.

Chemical equation

b.

Thermo chemical equations

c.

Experiment

d.

Rate constant

Question number: 3

» Chemical Kinetics » Rate of a Chemical Reaction

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Question

In the reaction. , the expression –d [N2] /dt represents?

Choices

Choice (4) Response

a.

The instantaneous rate of reaction

b.

The rate of formation of N2

c.

The average rate of reaction

d.

None of the above

Question number: 4

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

The decomposition of nitrogen pent oxide follows first order rate law. Calculate the rate constant from the given data?

t = 800 sec [N2O5] = 1.45 mol/L

t = 1600 sec [N2O5] = 0.88 mol/L

Choices

Choice (4) Response

a.

0.467×10-4 sec-1

b.

4.67×10-4 sec-1

c.

0.64×104 sec-1

d.

6.24×10-4 sec-1

Question number: 5

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

The rate constant of the reaction , is 3×10-5 sec-1. If the rate is 2.4×10-5 mol. lit-1sec-1. Then the concentration of in mol lit-1 will be?

Choices

Choice (4) Response

a.

1.27

b.

1.2

c.

2.1

d.

0.8

Question number: 6

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

The rate of the reaction, , is given by , the order of this reaction is?

Choices

Choice (4) Response

a.

½

b.

1/4

c.

2

d.

13/12

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