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Air. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceAir.1 Mark
MCQ
How does carbon dioxide react with the following?
  • A
    Potassium
  • B
    Lime water
  • C
    Sodium hydroxide
✓

Answer

Potassium combine with CO2 to form potassium carbonate.
4K + 3CO2 → 2K2CO3 + C.

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