1.

Calcium hydroxide on heating gives a solid product 'X' and on treatment with hydrochloric acid gives another solid product Y. What do you observe whe X and Y are exposed to atmosphere? Explain.

Answer»

SOLUTION :`CA(OH)_(2) rarr underset(("X"))(CaO + H_(2)O)`
`Ca(OH)_(2) + HC1 rarr underset(("Y"))(CaC1_(2)) + H_(2)O`
CaO is hygroscopic in nature absorbs moisture and remains in solid state.
`CaC1_(2)` is deliquescent in nature, absorbs moisture and is converted into solution state.


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