In the Haber's process of synthesis of NH3

Fe acts as inhibitor and Mo as a catalyst

Mo acts as a catalyst and Fe as a promotor

Fe acts as a catalyst and Mo as a promotor

Fe acts as inhibitor and Mo as a catalyst

Fe acts as promotor and Mo as auto catalyst

Assertion (A) : A chemical reaction becomes faster at higher temperature.Reason (R) : At higher temperature, molecular motion becomes more repidCodes

Both A and R are true but R is not the correct explanation of A

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is not the correct explanation of A

In the Haber's process of synthesis of NH

Fe acts as inhibitor and Mo as a catalyst

Mo acts as a catalyst and Fe as a promotor

Fe acts as a catalyst and Mo as a promotor

Fe acts as inhibitor and Mo as a catalyst

Fe acts as promotor and Mo as auto catalyst

19 + Mcqs in Catalysis in Chemistry Page 1 McqOptions

1.	Glucose or fructose is converted into C₂H₅OH in the presence of
A.	invertase
B.	diastase
C.	maltase
D.	zymase
Answer» E.

Discussion

2.	In the Haber's process of synthesis of NH₃
A.	Mo acts as a catalyst and Fe as a promotor
B.	Fe acts as a catalyst and Mo as a promotor
C.	Fe acts as inhibitor and Mo as a catalyst
D.	Fe acts as promotor and Mo as auto catalyst
Answer» C. Fe acts as inhibitor and Mo as a catalyst

Discussion

3.	Assertion (A) : A chemical reaction becomes faster at higher temperature. Reason (R) : At higher temperature, molecular motion becomes more repid Codes
A.	Both A and R are true and R is the correct explanation of A
B.	Both A and R are true but R is not the correct explanation of A
C.	A is true but R is false
D.	A is false but R is true
Answer» B. Both A and R are true but R is not the correct explanation of A

Discussion

4.	In the Ostwald's process for manufacture of HNO₃ the catalyst used is
A.	Fe
B.	Pt
C.	V
D.	O
E.	Mo
Answer» C. V

Discussion

5.	Alcoholic fermentation is brought about the action of
A.	Yeast
B.	CO
C.	O
D.	CO
Answer» B. CO

Discussion

6.	The catalyst used in the Deacon's process for the manufacture of chlorine is
A.	Pt
B.	CuCI
C.	V
D.	O
E.	Fe
Answer» C. V

Discussion

7.	Glucose or fructose is converted into C
A.	invertase
B.	diastase
C.	maltase
D.	zymase
Answer» E.

Discussion

8.	In the Haber's process of synthesis of NH
A.	Mo acts as a catalyst and Fe as a promotor
B.	Fe acts as a catalyst and Mo as a promotor
C.	Fe acts as inhibitor and Mo as a catalyst
D.	Fe acts as promotor and Mo as auto catalyst
Answer» C. Fe acts as inhibitor and Mo as a catalyst

Discussion

9.	Enzyme catalysis is an example of
A.	auto catalysts
B.	heterogeneous catalysts
C.	homogeneous catalysts
D.	induced catalysts
Answer» C. homogeneous catalysts

Discussion

10.	Efficiency of the catalysts depends on its
A.	molecular state
B.	number of free valencies
C.	physical state
D.	amount used
Answer» B. number of free valencies

Discussion

11.	Which of the following types of materials act as effective catalysis ?
A.	Alkali metals
B.	Transition metals
C.	Alkaline earth metals
D.	Radioactive metals
Answer» C. Alkaline earth metals

Discussion

12.	The hydrolysis of cane sugar is catalysed by
A.	H
B.	<sup>+</sup>
C.	Mineral acid
D.	Enzymes
E.	All of these
Answer» E. All of these

Discussion

13.	Which of the following is not a reducing sugar ?
A.	Sucrose
B.	Glucose
C.	Fructose
D.	None of these
Answer» B. Glucose

Discussion

14.	Substance which alter the velocity of reaction themselves remaining chemically and quantitatively unchanged after reaction are known as
A.	Indicators
B.	Catalysts
C.	Adsorbates
D.	Surfactants
Answer» C. Adsorbates

Discussion

15.	The substance which decreases the rate of a chemical reaction is called
A.	Inhibitor
B.	Poison
C.	Moderator
D.	Promotor
Answer» C. Moderator

Discussion

16.	TEL minimise the knocking effect when mixed with petrol, it acts as
A.	Positive catalyst
B.	Negative catalyst
C.	Auto catalyst
D.	Induced catalyst
Answer» C. Auto catalyst

Discussion

17.	Which of the following catalyst is sensitive to temperature changes ?
A.	Fe
B.	Pt
C.	Ni
D.	Enzyme
Answer» E.

Discussion

18.	The temperature at which the catalytic activity of the catayist is maximum, is called ?
A.	Critical temperature
B.	Room temperature
C.	Absolute temperature
D.	Optimum temperture
Answer» E.

Discussion

19.	The biocatalyst are
A.	Enzymes
B.	Minerals
C.	Plants
D.	All proteins
Answer» B. Minerals

Discussion

Explore topic-wise MCQs in Chemistry.

Glucose or fructose is converted into C₂H₅OH in the presence of

In the Haber's process of synthesis of NH₃

Assertion (A) : A chemical reaction becomes faster at higher temperature.
Reason (R) : At higher temperature, molecular motion becomes more repid
Codes

In the Ostwald's process for manufacture of HNO₃ the catalyst used is

Alcoholic fermentation is brought about the action of

The catalyst used in the Deacon's process for the manufacture of chlorine is

Glucose or fructose is converted into C

In the Haber's process of synthesis of NH

Enzyme catalysis is an example of

Efficiency of the catalysts depends on its

Which of the following types of materials act as effective catalysis ?

The hydrolysis of cane sugar is catalysed by

Which of the following is not a reducing sugar ?

Substance which alter the velocity of reaction themselves remaining chemically and quantitatively unchanged after reaction are known as

The substance which decreases the rate of a chemical reaction is called

TEL minimise the knocking effect when mixed with petrol, it acts as

Which of the following catalyst is sensitive to temperature changes ?

The temperature at which the catalytic activity of the catayist is maximum, is called ?

The biocatalyst are

Explore topic-wise MCQs in Chemistry.

Glucose or fructose is converted into C2H5OH in the presence of

In the Haber's process of synthesis of NH3

Assertion (A) : A chemical reaction becomes faster at higher temperature.Reason (R) : At higher temperature, molecular motion becomes more repidCodes

In the Ostwald's process for manufacture of HNO3 the catalyst used is

Alcoholic fermentation is brought about the action of

The catalyst used in the Deacon's process for the manufacture of chlorine is

Glucose or fructose is converted into C

In the Haber's process of synthesis of NH

Enzyme catalysis is an example of

Efficiency of the catalysts depends on its

Which of the following types of materials act as effective catalysis ?

The hydrolysis of cane sugar is catalysed by

Which of the following is not a reducing sugar ?

Substance which alter the velocity of reaction themselves remaining chemically and quantitatively unchanged after reaction are known as

The substance which decreases the rate of a chemical reaction is called

TEL minimise the knocking effect when mixed with petrol, it acts as

Which of the following catalyst is sensitive to temperature changes ?

The temperature at which the catalytic activity of the catayist is maximum, is called ?

The biocatalyst are

Glucose or fructose is converted into C₂H₅OH in the presence of

In the Haber's process of synthesis of NH₃

Assertion (A) : A chemical reaction becomes faster at higher temperature.
Reason (R) : At higher temperature, molecular motion becomes more repid
Codes

In the Ostwald's process for manufacture of HNO₃ the catalyst used is