NEET Chemistry: Questions 567 - 571 of 677

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 677 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

Question number: 567

» Chemical Kinetics » Rate of a Chemical Reaction

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-1

b.

0.005 mol. lit-1. min-1

c.

0.005 mol/lit

d.

0.05 mol. lit-1. min-1

Question number: 568

» Chemical Kinetics » Activation Energy

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.

288IkJ/mol

b.

28.811kJ/mol

c.

2.881kJ/mol

d.

0.288kJ/mol

Question number: 569

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

The rate of a chemical reaction

Choices

Choice (4) Response

a.

Decreases as the reaction proceeds

b.

Increases as the reaction proceeds

c.

May increase or decrease during the reaction

d.

Remains constant

Question number: 570

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

MCQ▾

Question

Which of the following statement is not correct regarding the order of reaction?

Choices

Choice (4) Response

a.

Order can be determined experimentally

b.

Order cannot be fractional

c.

A and B are correct only

d.

Order is equal to sum of powers of concentration terms of reactants

Question number: 571

» Chemical Kinetics » Collision Theory of Bimolecular Gaseous Reactions

MCQ▾

Question

According to the collision theory of reaction rates, the rate of reaction increased with temperature due to?

Choices

Choice (4) Response

a.

Decrease in the activation energy.

b.

Greater number of molecules having the activation energy

c.

Greater number of collisions

d.

Higher velocity of reacting molecules

Sign In