The hardness of water is due to the presence of-sodium and magnesium saltscalcium and sodium saltscalcium and magnesium saltsammonium and sodium salts

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Standard VIII

Chemistry

Softening of Hard Water

The hardness ...

Question

The hardness of water is due to the presence of:

calcium and magnesium salts

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sodium and magnesium salts

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calcium and sodium salts

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ammonium and sodium salts

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Solution

The correct option is A calcium and magnesium salts
Hardness of water is due to the presence of chlorides and sulphates of calcium and magnesium. It can be removed by adding sodium carbonate $({Na}_{2} {CO}_{3})$ or boiling.

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Similar questions

Sodium and magnesium salts make the water hard.

Chlorides and sulphates of _______________( sodium and magnesium/ calcium and magnesium) cause permanent hardness.

Q. Hardness of water is mainly due to the dissolved salts of calcium and magnesium.

Q. Permanent hardness of water is due to the presence of chlorides and salts of calcium and magnesium. It can be removed by using .

Choose the correct option.
Assertion (A): Hard water gives lather with soap easily.
Reason (R): Salts of sodium and magnesium present in hard water react with soap to form insoluble salts.

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The hardness of water is due to the presence of:

The correct option is A calcium and magnesium saltsHardness of water is due to the presence of chlorides and sulphates of calcium and magnesium. It can be removed by adding sodium carbonate (Na2CO3) or boiling.

The correct option is A calcium and magnesium salts
Hardness of water is due to the presence of chlorides and sulphates of calcium and magnesium. It can be removed by adding sodium carbonate $({Na}_{2} {CO}_{3})$ or boiling.