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Unit - 4.1 Importance of water and its resources — CHEMISTRY STD 6 — Question

ICSE BoardEnglish MediumSTD 6CHEMISTRYUnit - 4.1 Importance of water and its resources2 Marks
Question
Name three dissolved impurities.
✓

Answer

Three dissolved impurities in river water are
Salts of calcium and sodium dissolve from the soil into the water.
Gases like Sulphur dioxide and nitrogen dioxide get dissolved in water from the air.
Chemicals and domestic waste from cities and industries.

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