Catalyst and Catalysis
CHXII05:SURFACE CHEMISTRY

320707 Decomposition of urea into NH3 and CO2 is followed by the action of enzyme

1 Urease
2 Pepsin
3 Invertase
4 All of these
CHXII05:SURFACE CHEMISTRY

320708 Enzymes are made up of

1 Edible proteins
2 Proteins with specific structure
3 Nitrogen containing carbohydrate
4 Carbohydrates
CHXII05:SURFACE CHEMISTRY

320709 The characteristics of an enzyme are given below.
I. Enzymes are highly efficient.
II. Enzymes are highly specific in nature.
III. At optimum pH, they are less active.
IV. Enzyme activity is increased by the activator and co-enzymes.
Which of the above statements are correct?

1 I, II and III
2 I, II and IV
3 II, III and IV
4 II and III
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII05:SURFACE CHEMISTRY

320706 Platinised asbestos helps in the formation of SO3 from SO2 and O2. But, if even a small amount of As2O3 is present the platinised asbestos does not help in the formation of SO3.As2O3 acts here as a/an

1 Poison
2 Negative catalyst
3 Positive catalyst
4 Auto catalyst
CHXII05:SURFACE CHEMISTRY

320707 Decomposition of urea into NH3 and CO2 is followed by the action of enzyme

1 Urease
2 Pepsin
3 Invertase
4 All of these
CHXII05:SURFACE CHEMISTRY

320708 Enzymes are made up of

1 Edible proteins
2 Proteins with specific structure
3 Nitrogen containing carbohydrate
4 Carbohydrates
CHXII05:SURFACE CHEMISTRY

320709 The characteristics of an enzyme are given below.
I. Enzymes are highly efficient.
II. Enzymes are highly specific in nature.
III. At optimum pH, they are less active.
IV. Enzyme activity is increased by the activator and co-enzymes.
Which of the above statements are correct?

1 I, II and III
2 I, II and IV
3 II, III and IV
4 II and III
CHXII05:SURFACE CHEMISTRY

320706 Platinised asbestos helps in the formation of SO3 from SO2 and O2. But, if even a small amount of As2O3 is present the platinised asbestos does not help in the formation of SO3.As2O3 acts here as a/an

1 Poison
2 Negative catalyst
3 Positive catalyst
4 Auto catalyst
CHXII05:SURFACE CHEMISTRY

320707 Decomposition of urea into NH3 and CO2 is followed by the action of enzyme

1 Urease
2 Pepsin
3 Invertase
4 All of these
CHXII05:SURFACE CHEMISTRY

320708 Enzymes are made up of

1 Edible proteins
2 Proteins with specific structure
3 Nitrogen containing carbohydrate
4 Carbohydrates
CHXII05:SURFACE CHEMISTRY

320709 The characteristics of an enzyme are given below.
I. Enzymes are highly efficient.
II. Enzymes are highly specific in nature.
III. At optimum pH, they are less active.
IV. Enzyme activity is increased by the activator and co-enzymes.
Which of the above statements are correct?

1 I, II and III
2 I, II and IV
3 II, III and IV
4 II and III
CHXII05:SURFACE CHEMISTRY

320706 Platinised asbestos helps in the formation of SO3 from SO2 and O2. But, if even a small amount of As2O3 is present the platinised asbestos does not help in the formation of SO3.As2O3 acts here as a/an

1 Poison
2 Negative catalyst
3 Positive catalyst
4 Auto catalyst
CHXII05:SURFACE CHEMISTRY

320707 Decomposition of urea into NH3 and CO2 is followed by the action of enzyme

1 Urease
2 Pepsin
3 Invertase
4 All of these
CHXII05:SURFACE CHEMISTRY

320708 Enzymes are made up of

1 Edible proteins
2 Proteins with specific structure
3 Nitrogen containing carbohydrate
4 Carbohydrates
CHXII05:SURFACE CHEMISTRY

320709 The characteristics of an enzyme are given below.
I. Enzymes are highly efficient.
II. Enzymes are highly specific in nature.
III. At optimum pH, they are less active.
IV. Enzyme activity is increased by the activator and co-enzymes.
Which of the above statements are correct?

1 I, II and III
2 I, II and IV
3 II, III and IV
4 II and III