Question

Give five advantages and disadvantages of of Hard water.

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Answer 1

Explanation:

Adv-

1. Ca and Mg ion are present, which is good for children's teeth
2. Detergents are good cleaning agent in hard water.
3. This contains essential minerals that are better for human diet.
4. There are no health problems associated with drinking hard water.
5. Hard water prevents heart diseases.

Dis-

1. Soaps are not effective in hard water.
2. Can contribute to dry skin.
3. can contribute to dry hair.
4. washing hand frequently with hard water can leave ur scalp ithcy
5. These oftenly leave residue.

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Answer 2

Explanation:

Advantages -

1)It contains calcium ions which are needed for healthy teeth and bones.

2)It tastes better than soft water.

3) It prevents heart disease.

DISADVANTAGES-

1)This causes wastage of soap being used.

2)Bathing: Hard water does not lather freely with soap solution, but produces sticky scum on the bath-tub and body.

3) Cooking: Due to the presence of dissolved hardness-producing salts, the boiling point of water is elevated.

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