Q. No.The main constituents of Dettol are:
1. Chloroxylenol and α-terpineol.
2. Toluene and phenol.
3. Aniline and benzene.
4. None of the above.
The tincture of iodine comprises of -
1. 6−7 % solution of alcohol in iodine-water mixture.
2. 6−7 % solution of iodine in alcohol-water mixture.
3. 2−3 % solution of alcohol in iodine-water mixture.
4. 2−3 % solution of iodine in alcohol-water mixture.
Artificial sweetening agents are:
| 1. | Chemicals that sweeten food and do not add calories to our body. |
| 2. | Chemicals that sweeten food and add calories to our body. |
| 3. | Chemicals that do not sweeten food and do not add calories to our body. |
| 4. | Chemicals that do not sweeten food and add calories to our body. |
Alitame should be avoided as an artificial sweetener because -
1. It adds calories.
2. It is required in higher quantities.
3. It gives a peculiar smell.
4. It is difficult to control the sweetness.
Synthetic detergents are better than soaps because:
| 1. | Synthetic detergents work both in soft water and hard water. |
| 2. | Soaps work both in soft water and hard water. |
| 3. | Synthetic detergents work only in hard water. |
| 4. | Soaps work only in hard water. |
Choose the correct statement:
| 1. | Detergents that can not be degraded by bacteria are called biodegradable detergents. |
| 2. | Biodegradable detergents have straight hydrocarbon chains. |
| 3. | Detergents that can be degraded by bacteria are called non-biodegradable detergents. |
| 4. | Biodegradable detergents have highly branched hydrocarbon chains. |
Soaps do not work in hard water because:
| 1. | Calcium and magnesium ions displace sodium or potassium from their salts and form insoluble calcium or magnesium salts of fatty acids. |
| 2. | Sodium or potassium ions displace calcium and magnesium from their salts and form insoluble calcium or magnesium salts of fatty acids. |
| 3. | Calcium and magnesium ions displace sodium or potassium from their salts and form insoluble sodium or potassium salts of fatty acids. |
| 4. | None of the above. |
Detergents are preferred over soap for cleaning clothes because -
1. Detergents form soluble salts.
2. Detergents form insoluble salts.
3. Soaps form soluble salts.
4. Soaps form insoluble salts of potassium.
Drugs can be classified on the basis of:
1. Pharmacological effect.
2. Chemical structure.
3. Molecular targets.
4. All of the above.
The correct statement among the following regarding cationic detergent is/are:
| 1. | These are sodium salts of long chain alcohols or alkylbenzenesulphonic acids. |
| 2. | Sodium 4-(1-dodecyl) benzenesulphonate (SDS) is an example of an anionic detergent. |
| 3. | These are quaternary ammonium salts of acetates, chlorides, or bromides of amine. |
| 4. | None of the above. |
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