Question

CaO, when kept in open absorbs moisture from atmosphere and beco. es Ca(OH)2,this means CaO is what​

Answer 1

Hey mate!!

⏩This means CaO is basic in nature as it forms hydroxide (OH) and also has good reactivity.

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Answer 2

There are many chemical compounds which are highly reactive with the water, they can even react with the atmospheric water molecules by attracting them from the surrounding.

These molecules are also known as the hygroscopic substances.

Similarly,the CaO is also a hygroscopic chemical compound which reacts with the atmospheric water molecules and forms Ca(OH)2.