SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Molecular formula for the oxide of calcium is
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CaO
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Ca2O
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none
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None of the above
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Explanation:
Detailed explanation-1: -The chemical formula for calcium oxide is CaO and not Ca2O2. Comment. The chemical formula of calcium oxide is CaO because writing formula of a compound, valencies are divided by highest common factor. Similarly formula for aluminium nitrate is AlN and not Al3N3.
Detailed explanation-2: -Calcium oxide is made of two constituents calcium and oxygen elements and chemical formula formed as CaO.
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