| 1. | biological catalyst |
A. amino acid | |
B. glucose | |
C. nitrogen atom | |
D. enzymes |
| 2. | Which substance poisons the Pt catalyst in the contact method of manufacturing sulfuric acid? |
A. Sulphur | |
B. arsenic oxide | |
C. CO₂ | |
D. arsenic sulfide |
| 3. | Which of the following types of catalysts are best |
A. transition elements | |
B. alkali metals | |
C. alkali metals | |
D. colored metal |
| 4. | The catalyst used in the hydrogenation of oils is |
A. Fe | |
B. In | |
C. Mo | |
D. Pt |
| 5. | Sis is used as a catalyst in the chamber process – |
A. oxides of nitrogen | |
B. platinum | |
C. nickel | |
D. MnO₂ |
| 6. | Which of the following substances act as inhibitor for iron (Fe) catalyst in Haber’s process of ammonia? |
A. CO₂ | |
B. NO | |
C. H₂ | |
D. CO |
| 7. | Which enzyme converts glucose to alcohol |
A. james | |
B. events | |
C. maltes` | |
D. diastat |
| 8. | When potassium chlorate is heated, it decomposes into potassium chloride and oxygen. When manganese dioxide is added to it, the reaction becomes faster. this is due to – |
A. Manganese dioxide decomposes to give oxygen. | |
B. Manganese dioxide produces good contact. | |
C. Manganese dioxide produces good contact. | |
D. Manganese dioxide acts as a catalyst. |
| 9. | Used as a catalyst in the contact method of making sulfuric acid |
A. iron powder | |
B. platinum powder | |
C. oxides of nitrogen | |
D. nickel metal |
| 10. | Used as a catalyst in Deacon’s method of making chlorine gas |
A. oxides of nitrogen | |
B. hot alumina | |
C. cupric chloride | |
D. iron powder |