MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Natrolite is an example of ___________ |
| A. | Synthetic zeolite |
| B. | Natural zeolite |
| C. | Calgon |
| D. | Colloid |
| Answer» C. Calgon | |
| 2. |
Which of the following cannot be used in place of NaCl? |
| A. | NaNO<sub>3</sub> |
| B. | KCl |
| C. | HCl |
| D. | KNO<sub>3</sub> |
| Answer» D. KNO<sub>3</sub> | |
| 3. |
The hardness of 1000 litres of a water sample was removed by passing it through a zeolite softener which required 30litres of NaCl solution containing 1.5 gm/L NaCl for regeneration. The hardness of the water sample will be ___________ |
| A. | 54.2 ppm |
| B. | 12.9 ppm |
| C. | 45 ppm |
| D. | 38.46 ppm |
| Answer» E. | |
| 4. |
The exhausted zeolite is reclaimed by treating the bed with a ___________ |
| A. | Conc. NaCl |
| B. | Conc. HCl |
| C. | Conc. H<sub>2</sub>SO<sub>4</sub> |
| D. | Dil. HCl |
| Answer» B. Conc. HCl | |
| 5. |
Synthetic zeolites possess a higher exchange capacity per unit weight compared to natural zeolites. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Natural zeolites are ___________ |
| A. | Porous |
| B. | Amorphous |
| C. | Non-durable |
| D. | Possess gel structure |
| Answer» C. Non-durable | |
| 7. |
The chemical formula of zeolite is ___________ |
| A. | FeSO<sub>4</sub>.7H<sub>2</sub>O |
| B. | Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>.18 H<sub>2</sub>O |
| C. | Na<sub>2</sub>O.Al<sub>2</sub>O<sub>3</sub>.xSiO<sub>2</sub>.yH<sub>2</sub>O |
| D. | Na<sub>2</sub>Al<sub>2</sub>O |
| Answer» D. Na<sub>2</sub>Al<sub>2</sub>O | |