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A white amorphous solid compound of Ca [...

A white amorphous solid compound of Ca [X] with high MP of 2273K when exposed to oxyhydrogen flame becomes incandescent & prepared by a reversible reaction. It can absorb `CO_(2), SO_(2)` & moisture (DH=64.5kJ) and is a component of sodalime and the cheapest form of alkali & used in the purification of sugar. X is

A

quick lime/lime/burnt time

B

slaked lime

C

milk of lime

D

lime water

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