Check sibling questions

Explain the formation of scum when hard water is treated with soap.

 

Answer:

  • The hardness of water is due to the calcium and magnesium salts present in it. 
  • When the soap molecule reacts with these salts, it leads to the formation of a white precipitate which is insoluble in water and is known as scum.

  1. Class 10
  2. Chapter 4 Class 10 - Carbon and its Compounds

About the Author

Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo