Class 12th Chemistry Chapter Chemical Kinetics free mcq test quiz

Are you ready to put your knowledge of Chemical Kinetics to the test? Get ready to dive into the exciting world of reaction rates, rate laws, and reaction mechanisms with our free test quiz for Chapter Chemical Kinetics!

Check Class 12th Chemistry Chemical Kinetics Chapter Knowledge

12th Chemistry: Chemical Kinetics

1 / 10

1. Rate of which reaction increases with temperature :

of any type of reactions

of exothemic reactions

of endothemic reactions

of none

2 / 10

2. In a reaction, when the concentration of reactant is increased two times, the increase in rate of reaction was four times. Order of reaction is

zero

3 / 10

3. The role of a catalyst is to change

gibbs energy of reaction.

enthalpy of reaction.

activation energy of reaction.

equilibrium constant.

4 / 10

4. Collision theory is used to explain how chemical species undergo a reaction. Using this theory and the kinetic molecular model, which of the following does NOT influence the rate of a chemical reaction?

The temperature of the system

The geometry or orientation of the collision

The velocity of the reactants at the point ofcollision

All of the above influence the rate

5 / 10

5. A reaction involving two different reactants can never be

bimolecular reaction

second order reaction

first order reaction

unimolecular reaction

6 / 10

6. The rate constant of a reaction is 3.00 × 10 ³ L mol ^{– 1} sec ^{– 1} . The order of this reaction will be:

7 / 10

7. The order of a reaction, with respect to one of the reacting component Y, is zero. It implies that:

the reaction is going on at a constant rate

the rate of reaction does not vary with temperature

the reaction rate is independent of the concentration of Y

the rate of formation of the activated complex is zero

8 / 10

8. The decomposition of N₂O₅occurs as 2N₂O_{5 →} 4NO₂+ O₂ and follows Ist order kinetics, hence:

the reaction is unimolecular

the reaction is bimolecular

t_{1/2 ∞} a₀

None of these

9 / 10

9. The rate of reaction between two specific time intervals is called

instantaneous rate

average rate

specific rate

ordinary rate

10 / 10

10. The value of rate constant of a pseudo first order reaction ____________.

depends on the concentration of reactants present in small amount.

depends on the concentration of reactants present in excess.

is independent of the concentration of reactants.

depends only on temperature.

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Quiz Score Card of Chemical Kinetics

Pos.	Name	Score	Points
1	Dorjeegyem	85 %	17
2	Shambhavi	75 %	15
3	Vicky Kaushal	60 %	12
4	Kirthi	50 %	5
5	H	40 %	4
6	Rahul	40 %	8
7	Dorjee gyem	30 %	6

? Note: This quiz is entirely free, and all students of Class 12th Chemistry are invited to participate. Make the most of this opportunity to strengthen your understanding of Chemical Kinetics and excel in your exams!

Chapter wise quiz of XII class chemistry

In this quiz, you will have the opportunity to showcase your understanding of the following key concepts:

1️⃣ Reaction Rates: Understanding how fast or slow a chemical reaction takes place and factors affecting it.

2️⃣ Rate Laws: Determining the mathematical relationship between the concentration of reactants and the rate of a reaction.

3️⃣ Integrated Rate Laws: Exploring the concentration changes of reactants over time.

4️⃣ Activation Energy: Unraveling the energy barrier that reactants must overcome to initiate a chemical reaction.

5️⃣ Arrhenius Equation: Understanding the relationship between temperature, rate constant, and activation energy.

6️⃣ Catalysis: Examining the impact of catalysts on reaction rates and mechanisms.

FAQ

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