Which of the following statement-s- is-are true regarding soft water-Calcium salts are dissolved in it-It forms lather with soap very easily-Rain water is an example of soft water-Magnesium salts are dissolved in it-

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Soft Water

Which of the ...

Question

Which of the following statement(s) is/are true regarding soft water?

Calcium salts are dissolved in it.

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It forms lather with soap very easily.

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Rain water is an example of soft water.

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Magnesium salts are dissolved in it.

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Solution

The correct options are
A Calcium salts are dissolved in it.
B It forms lather with soap very easily.
C Rain water is an example of soft water.
Water is said to be soft if it is free from dissolved salts of calcium and magnesium. Soft water forms lather with soap very easily. Few examples of soft water are rain water, distilled water, etc.

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Similar questions

Q. Which of the following statements are true? Rewrite the false statements after correction.
(a) Water which looks clean and sparkling is suitable for drinking.
(b) soap lathers well in soft water.
(c) sodium sulphate is one of the substances which cause hardness in water.
(d) insoluble salts of calcium cause hardness in water.
(e) Rainwater, as it falls, is always pure.

Q. Which of the following is true regarding these statements?

Statement 1: Hard water contains dissolved salts of calcium and magnesium.
Statement 2: Hard water lathers easily with soap.

Q. Assertion :Soft water lathers with soap but not hard water Reason: Hard water reacts with soap t form insoluble salts which form scum, not lather

Q. Assertion(A): Hard water gives lather with soap easily.

Reason(R): Salts of calcium and magnesium react with soap to form insoluble salts.

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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