Which of the following is used for converting hard water to soft water?

Practice MCQ for SSC, UPSC, RRB Exams

A. Calsium Carbonate A.
B. Potassium Carbonate B.
C. Magnesium Hydroxide C.
D. Sodium Carbonate D.

Correct Answer: D সঠিক উত্তর: D

Explanation ব্যাখ্যা

The best chemical for converting hard water to soft water is washing soda (sodium carbonate). It effectively removes the calcium and magnesium ions that cause hardness by forming insoluble carbonates.

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