NEET (National Eligibility cum Medical Entrance Test) Chemistry: Questions 528 - 534 of 1145

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Question number: 528

» Chemical Kinetics » Activation Energy

MCQ▾

Question

Activation energy of a reaction is?

Choices

Choice (4) Response

a.

The energy needed to form one mole of product

b.

The energy released during the reaction

c.

The energy evolved when activation complex is formed

d.

Minimum amount of energy needed to overcome potential barrier

Question number: 529

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

Molecularity of a reaction is?

Choices

Choice (4) Response

a.

Can have a fractional value

b.

Never a whole number

c.

Can be zero

d.

A whole number

Question number: 530

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

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.

0.0329

b.

3.29

c.

0.0293

d.

0.329

Question number: 531

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

The order of a reaction can be deduced from?

Choices

Choice (4) Response

a.

Chemical equation

b.

Experiment

c.

Rate constant

d.

Thermo chemical equations

Question number: 532

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

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

Choices

Choice (4) Response

a.

The average rate of reaction

b.

The instantaneous rate of reaction

c.

The rate of formation of N2

d.

Question does not provide sufficient data or is vague

Question number: 533

» Chemical Kinetics » Factors Affecting the Rate of Reactions

MCQ▾

Question

In general for every 10℃ rise in temperature, the rate of reaction becomes approximately?

Choices

Choice (4) Response

a.

Ten times

b.

Half

c.

One tenth

d.

Doubles

Question number: 534

» Chemical Kinetics » Factors Affecting the Rate of Reactions

MCQ▾

Question

The influence of temperature on the rate of reaction is determined by?

Choices

Choice (4) Response

a.

Nernst equation

b.

Arrhenius equation

c.

Gibbs equation

d.

Van’t hoff equation

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