Chemical Kinetics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 6 of 50

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Question number: 1

» Chemical Kinetics » Collision Theory of Bimolecular Gaseous Reactions

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MCQ▾

Question

According to Arrhenius theory, the rate is directly proportional to the number of effective collisions , here Z is?

Choices

Choice (4) Response

a.

Collision fraction

b.

Collision frequency

c.

Collision coefficient

d.

Question does not provide sufficient data or is vague

Question number: 2

» Chemical Kinetics » Differential and Integral Forms of Zero and First Order Reactions

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MCQ▾

Question

A substance reacts with initial concentration of a mol/dm3 according to zero order kinetics. The time it takes for the completion of the reaction is (k = rate constant)?

Choices

Choice (4) Response

a.

2k/a

b.

a/k

c.

a/2k

d.

k/a

Question number: 3

» Chemical Kinetics » Activation Energy

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MCQ▾

Question

Activation energy of a reaction is?

Choices

Choice (4) Response

a.

Minimum amount of energy needed to overcome potential barrier

b.

The energy released during the reaction

c.

The energy needed to form one mole of product

d.

The energy evolved when activation complex is formed

Question number: 4

» 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: 5

» Chemical Kinetics » Differential and Integral Forms of Zero and First Order Reactions

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MCQ▾

Question

90 % of the first order reaction is completed in 70 minutes. The velocity constant of the reaction is?

Choices

Choice (4) Response

a.

0.329

b.

0.0329

c.

3.29

d.

0.0293

Question number: 6

» 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

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