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Question

CaO(s)+H2O (l)Ca(OH)2(aq)+Heat

What cannot be inferred from the above reaction?


A
Water H2O is in vapour state.
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B
Calcium hydroxide Ca(OH)2 is aqueous in nature.
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C
Heat is released in the reaction.
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D
Calcium oxide (CaO) is solid.
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Solution

The correct option is A Water H2O is in vapour state.
  • Calcium oxide (CaO) is mentioned as (s), hence it is in solid state.
  • Water (H2O) is mentioned as (l), hence it is in liquid state and not in vapour state.
  • Calcium hydroxide Ca(OH)2 is mentioned as (aq), since it forms a solution with water.
  • Heat is released in the reaction.

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