A zero order reaction is one ___________

In which one of the reactant is in large excess

In which rate is independent of reactants concentration

In which one of the reactant is in large excess

Whose rate is not affected by time

How does half life period of a first order reaction vary with temperature?

Both increases as well as decrease

Temperature dependence of reaction rates can be studied by plotting a graph between ___________

Rate of catalysis and temperature

Concentration of reactants and temperature

Concentration of products and temperature

Rate of catalysis and temperature

Explore topic-wise MCQs in Engineering Chemistry.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.	A zero order reaction is one ___________
A.	In which rate is independent of reactants concentration
B.	In which one of the reactant is in large excess
C.	Whose rate is not affected by time
D.	Whose rate increases with time
Answer» B. In which one of the reactant is in large excess

Discussion

2.	Which of the following method is satisfactory only for a simple homogeneous reaction?
A.	Integration method
B.	Half life period method
C.	Graphical method
D.	Ostwald s isolation method
Answer» B. Half life period method

Discussion

3.	Which of the following method is used to determine the order of the reaction in which two or more reactants take part?
A.	Integration method
B.	Half life period method
C.	Graphical method
D.	Ostwald s isolation method
Answer» E.

Discussion

4.	How many times the rate of reaction increases at 20⁰C for a reaction having the activation energies in the presence and absence of catalyst as 50 kJ/mol and 75 kJ/mol?
A.	1000
B.	10000
C.	30000
D.	50000
Answer» D. 50000

Discussion

5.	How does half life period of a first order reaction vary with temperature?
A.	It increases
B.	It decreases
C.	It remains the same
D.	Both increases as well as decrease
Answer» B. It decreases

Discussion

6.	According to Arrhenius equation, rate constant(k) is proportional to ___________
A.	Activation Energy (E)
B.	e<sup>E</sup>
C.	e<sup>1/E</sup>
D.	e<sup>-E</sup>
Answer» E.

Discussion

7.	The ratio of the rate constant of a reaction at two temperatures differing by __________⁰C is called temperature coefficient of reaction.
A.	2
B.	10
C.	100
D.	50
Answer» C. 100

Discussion

8.	Temperature dependence of reaction rates can be studied by plotting a graph between ___________
A.	Concentration of reactants and temperature
B.	Concentration of products and temperature
C.	Rate constant and temperature
D.	Rate of catalysis and temperature
Answer» D. Rate of catalysis and temperature

Discussion

Explore topic-wise MCQs in Engineering Chemistry.

A zero order reaction is one ___________

Which of the following method is satisfactory only for a simple homogeneous reaction?

Which of the following method is used to determine the order of the reaction in which two or more reactants take part?

How many times the rate of reaction increases at 200C for a reaction having the activation energies in the presence and absence of catalyst as 50 kJ/mol and 75 kJ/mol?

How does half life period of a first order reaction vary with temperature?

According to Arrhenius equation, rate constant(k) is proportional to ___________

The ratio of the rate constant of a reaction at two temperatures differing by __________0C is called temperature coefficient of reaction.

Temperature dependence of reaction rates can be studied by plotting a graph between ___________

How many times the rate of reaction increases at 20⁰C for a reaction having the activation energies in the presence and absence of catalyst as 50 kJ/mol and 75 kJ/mol?

The ratio of the rate constant of a reaction at two temperatures differing by __________⁰C is called temperature coefficient of reaction.