Crystals of Na2CO2.H2Owhen exposed to
Correct answer: A. Lose water and remain solid
- A. Lose water and remain solid
- B. Gain water and remain solid
- C. Gain water and become liquid
- D. Remains unchanged
Explanation
Sodium carbonate monohydrate (Na2CO3.H2O) is a hygroscopic compound, meaning it readily absorbs moisture from the air.However, it loses its water molecule at room temperature when exposed to dry air, leaving behind anhydrous sodium carbonate (Na2CO3) as a fine white powder. This process does not involve changing into a liquid state.Therefore, option (a) accurately describes the behavior of Na2CO3.H2O crystals upon exposure to air.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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