Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 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
The cleansing action of a detergent is less effective than a soap in hard water.
4
More than one of the above
5
None of the above