Match List - I with List - II List - I (process) List - II (catalyst) (a) Deacon's process (i) ZSM - 5 (b) Contact process (ii) CuCl 2 (c) Cracking of hydrocarbons (iii) Ni (d) Hydrogenation of vegetable oils (iv) V 2 O 5 Choose the most appropriate answer from the options given below-

a - ii , b - iv , c - i , d - iii

a - i , b - ii , c - ii , d - iv

a - iii , b - i , c - iv , d - ii

a - iv , b - ii , c - i , d - iii

Match List - I with List - II. List –I (Processes/Reactions) List-II (Catalyst) A 2 SO 2 g + O 2 g → 2 SO 3 g I Fe s B 4 NH 3 g + 5 O 2 g → 4 NO g + 6 H 2 O g II Pt s - Rh s C N 2 g + 3 H 2 g → 2 NH 3 g III V 2 O 5 D Vegetable oil l + H 2 → Vegetable ghee(s) IV Ni s Choose the correct answer from the options given below

A - III , B - II , C - I , D - IV

A - III , B - I , C - II , D - IV

A - IV , B - III , C - I , D - II

A - IV , B - II , C - III , D - I

Match the catalysts (Column I ) with products (Column II ) Column I Column II Catalyst Product A. V 2 O 5 P. Polyethylene B. T i C l 4 / A l M e 3 Q. Ethanal C. P d C l 2 R. H 2 S O 4 D. Iron Oxide S. N H 3

( A ) - ( R ) ; ( B ) - ( P ) ; ( C ) - ( Q ) ; ( D ) - ( S )

( A ) - ( S ) ; ( B ) - ( R ) ; ( C ) - ( Q ) ; ( D ) - ( P )

( A ) - ( R ) ; ( B ) - ( S ) ; ( C ) - ( P ) ; ( D ) - ( Q )

( A ) - ( Q ) ; ( B ) - ( R ) ; ( C ) - ( P ) ; ( D ) - ( S )

Match List I with List II. List-I Enzyme List-II Conversion of A. Invertase I. Starch into maltose B. Zymase II. Maltose into glucose C. Diastase III. Glucose into ethanol D. Maltase IV. Cane sugar into glucose Choose the most appropriate answer from the options given below

A - IV , B - III , C - I , D - II

A - III , B - IV , C - II , D - I

A - III , B - II , C - I , D - IV

A - IV , B - II , C - III , D - I

Match List-I with List-II. List-I List-II A 4 NH 3 g + 5 O 2 g → 4 NO g + 6 H 2 O g I NO g B N 2 g + 3 H 2 g → 2 NH 3 g II H 2 SO 4 l C C 12 H 22 O 11 aq + H 2 O l → C 6 H 12 O 6 Glucose + C 6 H 12 O 6 Fructose III Pt s D 2 SO 2 g + O 2 g → 2 SO 3 g IV Fe s Choose the correct answer from the options given below

A - III , B - IV , C - II , D - I

A - II , B - III , C - I , D - IV

A - III , B - II , C - I , D - IV

A - III , B - II , C - IV , D - I

MEDIUM

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The catalytic efficiency of two different enzymes can be compared by the

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Important Questions on Biomolecules

HARD

Biology>Cell Biology>Biomolecules>Enzymes

Match the following.

List - $I$ Reaction		List - $II$ Catalyst
$(A)$	$N_{2} (g) + 3 H_{2} (g) ⟶ 2 {NH}_{3} (g)$	$(I)$	$Ni$
$(B)$	$2 H_{2} (g) + O_{2} (g) ⟶ 2 H_{2} O (l)$	$(II)$	$Pt$
$(C)$	$CO (g) + 3 H_{2} (g) ⟶ {CH}_{4} (g) + H_{2} O (g)$	$(III)$	$ZnO - {Cr}_{2} O_{3}$
$(D)$	$CO (g) + 2 H_{2} (g) ⟶ {CH}_{3} OH (g)$	$(IV)$	$Fe$

The correct answer is:

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which one of the following statements is incorrect about enzyme catalysis?

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which of the following is a character of catalyst?

MEDIUM

Biology>Cell Biology>Biomolecules>Enzymes

Match List $- I$ with List $- II$

	List $- I$ (process)		List $- II$ (catalyst)
(a)	Deacon's process	(i)	$ZSM - 5$
(b)	Contact process	(ii)	${CuCl}_{2}$
(c)	Cracking of hydrocarbons	(iii)	$Ni$
(d)	Hydrogenation of vegetable oils	(iv)	$V_{2} O_{5}$

Choose the most appropriate answer from the options given below-

MEDIUM

Biology>Cell Biology>Biomolecules>Enzymes

Which one of the following is an example for homogenous catalysis?

EASY

Biology>Cell Biology>Biomolecules>Enzymes

___ acts as a negative catalyst in the decomposition of

H_{2} O_{2}

EASY

Biology>Cell Biology>Biomolecules>Enzymes

The role of a catalyst in a reversible reaction is

HARD

Biology>Cell Biology>Biomolecules>Enzymes

Match List - I with List - II.

	List –I (Processes/Reactions)		List-II (Catalyst)
A	$2 {SO}_{2} (g) + O_{2} (g) \to 2 {SO}_{3} (g)$	I	$Fe (s)$
B	$4 {NH}_{3} (g) + 5 O_{2} (g) \to 4 NO (g) + 6 H_{2} O (g)$	II	$Pt (s) - Rh (s)$
C	$N_{2} (g) + 3 H_{2} (g) \to 2 {NH}_{3} (g)$	III	$V_{2} O_{5}$
D	Vegetable oil $(l) + H_{2} \to$ Vegetable ghee(s)	IV	$Ni (s)$

Choose the correct answer from the options given below

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Match the catalysts (Column

I

) with products (Column

II

)

	Column I		Column II
	Catalyst		Product
A.	$V_{2} O_{5}$	P.	Polyethylene
B.	$T i C l_{4} / A l {(M e)}_{3}$	Q.	Ethanal
C.	$P d C l_{2}$	R.	$H_{2} S O_{4}$
D.	Iron Oxide	S.	$N H_{3}$

MEDIUM

Biology>Cell Biology>Biomolecules>Enzymes

In the reaction,

H_{2} O_{2} (aq) \overset{I^{-} (aq)}{\to} H_{2} O (l) + \frac{1}{2} O_{2} (g)

iodide ion acts as:

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which statement is incorrect for a catalyst?

HARD

Biology>Cell Biology>Biomolecules>Enzymes

Ethanol is produced from glucose and fructose in the presence of enzyme

EASY

Biology>Cell Biology>Biomolecules>Enzymes

In manufacturing of sulphuric acid in presence of platinum catalyst, which metal impurity acts as catalytic poison?

EASY

Biology>Cell Biology>Biomolecules>Enzymes

An example for homogeneous catalysis is

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Match List I with List II.

	List-I Enzyme		List-II Conversion of
A.	Invertase	I.	Starch into maltose
B.	Zymase	II.	Maltose into glucose
C.	Diastase	III.	Glucose into ethanol
D.	Maltase	IV.	Cane sugar into glucose

Choose the most appropriate answer from the options given below

HARD

Biology>Cell Biology>Biomolecules>Enzymes

Give two examples for heterogeneous catalysis.

MEDIUM

Biology>Cell Biology>Biomolecules>Enzymes

Match List-I with List-II.

	List-I		List-II
A	$4 {NH}_{3} (g) + 5 O_{2} (g) \to 4 NO (g) + 6 H_{2} O (g)$	I	$NO (g)$
B	$N_{2} (g) + 3 H_{2} (g) \to 2 {NH}_{3} (g)$	II	$H_{2} {SO}_{4} (l)$
C	$C_{12} H_{22} O_{11} (aq) + H_{2} O (l) \to C_{6} H_{12} O_{6} (Glucose) + C_{6} H_{12} O_{6} (Fructose)$	III	$Pt (s)$
D	$2 {SO}_{2} (g) + O_{2} (g) \to 2 {SO}_{3} (g)$	IV	$Fe (s)$

Choose the correct answer from the options given below

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which of the following is an example of homogeneous catalysis?

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which of the following statements about enzyme catalysis is FALSE?

EASY

Biology>Cell Biology>Biomolecules>Enzymes

Which of the following statements about enzymes is not correct?

The catalytic efficiency of two different enzymes can be compared by the

Important Questions on Biomolecules

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