50 ml of samples of distilled water ordinary tap water and boiled tap water requires 2 ml 26 and 10 of soap solution respectively to form permanent lather. The ratio of permanent hardness to temporary hardness in tap water is

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50 ml of samples of distilled water ordinary tap water and boiled tap water requires 2 ml 26 and 10 of soap solution respectively to form permanent lather. The ratio of permanent hardness to temporary hardness in tap water is

1.1:02

2.3:02

3.2:00

4.2:01

Posted Date:-2021-09-30 17:03:25

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