- 1(current)
Q. No.Which one is an example of heterogeneous catalysis?
| 1. | Combination between dinitrogen and dihydrogen to form ammonia in the presence of finely divided iron. |
| 2. | Oxidation of sulphur dioxide into sulphur trioxide in the presence of oxides of nitrogen. |
| 3. | Hydrolysis of sugar catalysed by H+ ions. |
| 4. | Decomposition of ozone in presence of nitrogen monoxide. |
Subtopic: Â Catalyst |
 53%
Level 3: 35%-60%
NEET - 2023
Hints
The incorrect statement regarding enzymes is:
| 1. | Enzymes are very specific for a particle reaction and substrate. |
| 2. | Enzymes are biocatalysts. |
| 3. | Like chemical catalysts, enzymes reduce the activation energy of bio processes. |
| 4. | Enzymes are polysaccharides. |
Subtopic: Â Catalyst |
 79%
Level 2: 60%+
NEET - 2022
Hints
Which one of the following statements about enzyme catalysis is incorrect?
| 1. | Enzymes are mostly proteinous in nature. |
| 2. | Enzyme action is specific. |
| 3. | Enzymes are denaturized by ultraviolet rays at high temperatures. |
| 4. | Enzymes are least reactive at an optimum temperature. |
Subtopic: Â Catalyst |
 87%
Level 1: 80%+
AIPMT - 2012
Hints
Which of the following is correct:
1. Cycloheptane is an aromatic compound
2. Diastase is an enzyme
3. Acetophenone is an ether
4. All the above
Subtopic: Â Catalyst |
 54%
Level 3: 35%-60%
AIPMT - 2001
Hints
- 1(current)
Q. No.
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