A compound that is a white solid which absorbs water vapour from the air is :

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Q: 18 (CDS-II/2013)
A compound that is a white solid which absorbs water vapour from the air is :
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question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,20,82,16,31,35,20

keywords: 

{'water vapour': [0, 0, 1, 2], 'calcium sulphate': [0, 1, 1, 7], 'calcium chloride': [0, 0, 1, 1], 'compound': [0, 0, 1, 1], 'sodium carbonate': [0, 0, 0, 1], 'sodium nitrate': [0, 0, 0, 1], 'air': [1, 0, 0, 0]}