defence exam SSB Head Constable (Communication) 2023 Mock Test General Science Chemistry Chemical Reaction
Which one of the following statements about the cleansing action of detergent is not true?
1
The cleansing action of detergents results from their ability to lower the surface tension of water
2
In water, a detergent dissolves to form detergent anions and sodium cations.
3
Detergents do not form precipitates in acidic water. Thus, their cleansing action is not affected.
4
The cleansing action of a detergent is less effective than a soap in hard water.