An element X makes an oxide with the formula X2O3. This element will be in the same group as:
A. Na
B. Mg
C. Al
D. Cl [Diksha]
Answer:C
An element X makes an oxide with the formula X2O3. This element will be in the same group as:
A. Na B. Mg C. Al D. Cl [Diksha]
Explanation: The answer is Al (aluminium). The element Al is in group II! of Mendeleev’s periodic table, in which the general formula of the oxides of elements is X2O3.