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NEETChemistrys Block Elements

What happens to calcium oxide when exposed to the atmosphere?

Options

  1. AIt becomes radioactive.
  2. BIt releases a strong odor.
  3. CIt absorbs moisture and carbon dioxide.
  4. DIt remains unchanged.

Correct answer

C. It absorbs moisture and carbon dioxide.

Step-by-step solution

When exposed to the atmosphere, calcium oxide (CaO) absorbs moisture and carbon dioxide.

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