Question

An element a reacts with water to form a compound b which is used in white washing. The compound b on heating forms an oxide wan element a reacts with water to form a compound b which is used in white washing. The compound b on heating forms an oxide which on treatment with water gives back

b. Identify a, b and c and give the reactions involved..​

Answer 1

Answer:

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Explanation:

Element A is calcium (Ca). When it reacts with water, it forms calcium hydroxide. Thus, compound B is calcium hydroxide [Ca(OH)2], which is used in white washing. Compound B on heating gives CaO.

Answer 2

Explanation:

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