NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 564 - 568 of 1258

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Question number: 564

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

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MCQ▾

Question

Idonation of acetone in presence of H+ is the reaction, which order?

Choices

Choice (4) Response

a.

zero order

b.

First order

c.

Third order

d.

Second order

Question number: 565

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

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MCQ▾

Question

At 500 K, the half-life period of a gaseous reaction at an initial pressure of 80 kPa is 350sec. When the pressure is 40 kPa, the half-life period is 175 sec; the order of the reaction is?

Choices

Choice (4) Response

a.

3

b.

0

c.

1

d.

2

Question number: 566

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

Ammonia and oxygen reacts at higher temperature as and in this experiment the concentration of NO increases by 1.08×10-2 mol lit-1 in 3 seconds, calculate rate of reaction?

Choices

Choice (4) Response

a.

0.9×10-4 mol. lit-1sec-1

b.

9×10-4 mol. lit-1sec-1

c.

0.009 mol. lit-1sec-1

d.

9×10-3 mol. lit-1sec-1

Question number: 567

» Chemical Kinetics » Rate of a Chemical Reaction

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MCQ▾

Question

In a reaction, the concentration of a reactant A changes from 0.200 mol/lit to 0.150 mol/lit in 10 minutes. What is the average rate of reaction during the interval?

Choices

Choice (4) Response

a.

0.005 mol/lit

b.

0.05 mol. lit-1. min-1

c.

0.005 mol. lit-1

d.

0.005 mol. lit-1. min-1

Question number: 568

» Chemical Kinetics » Activation Energy

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MCQ▾

Question

The rate of reaction triples when temperature changes from 20℃ to 50℃. Calculate energy of activation for the reaction (R = 8.314J/K. mol)?

Choices

Choice (4) Response

a.

b.

c.

d.