Question 3 Page 33 - Chapter 2 Class 10 - Acids, Bases and Salts

Last updated at Dec. 16, 2024 by

Q.) Name the sodium compound which is used for softening hard water.

 

Answer:

 

Washing Soda (Na 2 CO 3 .10H 2 O) is the sodium compound which is used for softening hard water.The carbonate ions (CO 3 2- ) ions in washing soda react with calcium ions in hard water and remove them as insoluble calcium carbonate thus softening the hard water.

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