Civil Services Uttar Pradesh (उत्तर प्रदेश) PCS Mock Test Series 2025 General Science Chemistry Chemistry in Everyday Life
Which of the following is a common drawback of using soap in hard water?
1
Soap dissolves too quickly in hard water.
2
Formation of soap scum due to the reaction with calcium and magnesium ions.
3
Soap creates too much lather.
4
Soap loses its colour in hard water.