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1. |
Define:(a) Soft water(b) Hard water |
Answer» (a) Soft water: The water present in different natural sources have different substances dissolved in it. The water drawn from certain sources forms a lather with soap rather easily. Such water is called soft water. (b) Hard water: Water obtained from various sources does not easily form a lather with soap, rather it forms a white sticky scum or a precipitate. This water is called hard water. |
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