Drugs can be classified on the basis of :

1. Pharmacological effect.

2. Chemical structure.

3. Molecular targets.

4. All of the above.

Subtopic:  Classification of Medicines |
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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.
Subtopic:  Soaps & Detergents, Dyes & Propellant |
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The correct statement among the following during the cleansing action of soaps is:

1. Hydrophobic parts of the stearate ions attach themselves to the oil droplets.
2. Hydrophilic parts of the stearate ions project outside the oil droplets.
3. Hydrophilic parts of the stearate ions attach themselves to the oil droplets.
4. Both (1) and (2)
Subtopic:  Soaps & Detergents, Dyes & Propellant |
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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.

Subtopic:  Soaps & Detergents, Dyes & Propellant |
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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.
Subtopic:  Soaps & Detergents, Dyes & Propellant |
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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.
Subtopic:  Soaps & Detergents, Dyes & Propellant |
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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.
Subtopic:  Soaps & Detergents, Dyes & Propellant |
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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 .

Subtopic:  Food - Preservatives, Artificial Sweeteners & Antioxidants |
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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.
Subtopic:  Food - Preservatives, Artificial Sweeteners & Antioxidants |
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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.

Subtopic:  Classification of Medicines |
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