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Groups in Modern Periodic Table

Write the che...

Question

Write the chemical formulae of the following compounds
1. Hydrogen Chloride.
2. Magnesium Chloride
3. Aluminium Oxide

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Solution

1. HCl (valency of both is 1)
2. MgCl₂(valency of Mg is 2 and Cl is 1)
3. Al₂O₃(valency of Al is 3 and O is 2)

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Groups in Modern Periodic Table

Standard IX Chemistry

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