An element X forms an oxide X₂O₃. In which group of Mendeleev's periodic table is this element placed?(a) group II (b) group III (c) group V (d) group VIII

Academic Chemistry NCERT Class 10

Correct answer: (b) Group III

Explanation: The element which forms the oxide X2O3 is placed in group 3 of the periodic table as the element X has 3 electrons in its outermost shell.

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Updated on: 10-Oct-2022

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