Question

Give the test for hardness of water. (2mark)​

Answer 1

Answer:

where.........

kaha dena h........

Answer 2

Answer:

Water hardness can be easily measured using a simple soap test kit that will measure in "grains of hardness" (a little bottle with a line marked on it which you fill to the line with water, add a drop of soap, and shake to look for suds. More drops of soap - more degrees of hardness).

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