Write the common name, chemical name and chemical formula for the following:
1) Used for roof decoration
2) Blue in colour

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Solution

Dear student

1) Chemical compound used in roof decoration is Plaster of Paris
Its common name is Plaster
Chemical name is :Calcium sulphate hemihydrate
Chemical formula: CaSO₄.1/2H₂O

2) Chemical compound which is blue in colour is Copper sulphate
Its common name is Blue vitriol
Chemical name is Copper sulphate pentahydrate
Chemical formula is CuSO₄.5H₂O

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