Question

*The compound which is used for softening hard water is:*

1️⃣ Sodium chloride
2️⃣ Sodium carbonate
3️⃣ Calcium carbonate
4️⃣ Calcium hydroxide​

Answer 1

Answer:

Washing soda or sodium carbonate is used for removing permanent hardness of water or softening hard water.

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Answer 2

Answer:

Option 2 Sodium Carbonate

Explanation:

Washing soda or sodium carbonate is used for removing permanent hardness of water or softening hard water.