Question

a substance x is used for whitewashing .how do you generally prepare x.what type of reaction is this . compound x when painted on walls turns pure white on drying to form a compound y.identify x and y. write all equations mention in this question.
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Answer 1

Answer:

the compound is cao when it react with the

carbon dioxide it gives calcium carbonate (caco3) I hope it will help you and please follow me

Answer 2

Answer:

X- Calcium hydroxide

Y- Calcium carbonate

Calcium hydroxide is prepared by reacting calcium oxide and water. It is combination reaction

Here are the reactions.