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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
Question
Name the sodium compound which is used for softening hard water.
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Answer

Washing soda $\left( Na _2 CO _3 \cdot 10 H _2 O \right)$

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