What causes the temporary and permanent hardness of water ?

Question

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Answer 1

The presence of calcium and magnesium bicarbonates $C a (H C O_{3})_{2}$ and $M g (H C O_{3})_{2}$ causes temporary hardness in water. The presence of soluble salts of calcium and magnesium, i.e., sulphates and chlorides of calcium and magnesium cause permanent hardness in water.

Answer 2

The presence of calcium and magnesium bicarbonates

C a (H C O_{3})_{2}

and

M g (H C O_{3})_{2}

causes temporary hardness in water. The presence of soluble salts of calcium and magnesium, i.e., sulphates and chlorides of calcium and magnesium cause permanent hardness in water.

What causes the temporary and permanent hardness of water ?

The presence of calcium and magnesium bicarbonates $C a (H C O_{3})_{2}$ and $M g (H C O_{3})_{2}$ causes temporary hardness in water. The presence of soluble salts of calcium and magnesium, i.e., sulphates and chlorides of calcium and magnesium cause permanent hardness in water.

Permanent hardness in water is due to the presence of:

Both temporary and permanent hardness in water is removed by________.

Both temporary and permanent hardness is removed on boiling water with :-

Both temporary and permanent hardness in water is removed by:

Which of the following substances cause permanent hardness of water?

Revise with Concepts

Water - Structure and Physical Properties

Water - Chemical Properties

Hard and Soft Water-Advanced

What causes the temporary and permanent hardness of water ?

The presence of calcium and magnesium bicarbonates Ca(HCO3​)2​ and Mg(HCO3​)2​ causes temporary hardness in water. The presence of soluble salts of calcium and magnesium, i.e., sulphates and chlorides of calcium and magnesium cause permanent hardness in water.

Permanent hardness in water is due to the presence of:

Both temporary and permanent hardness in water is removed by________.

Both temporary and permanent hardness is removed on boiling water with :-

Both temporary and permanent hardness in water is removed by:

Which of the following substances cause permanent hardness of water?

Revise with Concepts

Water - Structure and Physical Properties

Water - Chemical Properties

Hard and Soft Water-Advanced

The presence of calcium and magnesium bicarbonates $C a (H C O_{3})_{2}$ and $M g (H C O_{3})_{2}$ causes temporary hardness in water. The presence of soluble salts of calcium and magnesium, i.e., sulphates and chlorides of calcium and magnesium cause permanent hardness in water.