A metal 'M' is in the first group of the Periodic Table. What will be the formula of its oxide?
MO
M₂O
M₂O₃
MO₂

Academic Chemistry NCERT Class 10

Correct Answer: (b) M2O

Explanation: As the first group of the periodic table also known as alkali metals have valency =1, and oxide with the valency =2. Hence, the formula of oxide would be M₂O.

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Updated on: 10-Oct-2022

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