A substance ‘X’ is used in white-washing and is obtained by heating limestone in the absence of air. Identify ‘X’.

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Question: A substance ‘X’ is used in white-washing and is obtained by heating limestone in the absence of air. Identify ‘X’.

1.CaOCl2

2.Ca (OH)2

3.CaO

4.CaCO3

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  1. A substance ‘X’ is used in white-washing and is obtained by heating limestone in the absence of air. Identify ‘X’.
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