Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

A

Cationic

B

Anionic

C

Amphoteric

D

Semi polar

Experts say that 25% of all serious bicycle accidents involve head injuries and of all such head injuries, 80% are fatal. What percentage of all serious bicycle accidents involve fatal head injuries?

A

6%

B

20%

C

55%

D

105%

Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

A

Endothermic

B

Exothermic

C

Irreversible

D

Both B and C

The following viruses can be inactivated by detergent

A

Human immunodeficiency virus

B

Hepatitis B virus

C

Rabies virus

D

Hepatitis A virus

E

Poliomyelitis virus

When a detergent is added to pure water, its surface tension

A

Increases

B

Decreases

C

Remains constant

D

Becomes infinite

The advantage of detergents over soaps is

A

detergents are soluble in water

B

detergents could not givemuch lather

C

detergents give lather even with hard water

D

soaps give lather with only soft water

Which of the following is a detergent?

A

Benzene hexachloride

B

Alkyl benzene sulphonate

C

Polytetraflouroethylene

D

Cellulose nitrate

Hydrophilic group of a soap or detergent solution is

A

Water hating

B

Soil loving

C

Water loving

D

None of these

Detergent is added as an additive in engine lubricating oil to

A

Reduce deposit formation

B

Keep contaminants in suspension

C

Increase oxidation stability

D

Prevent rusting

What are the soaps?

A

Salts of silicates

B

Mixture of glycerol and alcohols

C

Sodium or potassium salts of heavier fatty acids

D

Esters of heavy fatty acids

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

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