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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
An element X has a valency of 2. Write the simplest formula for:
oxide of the element.
✓

Answer

Oxide of element: As valency of oxygen is -2 and that of element is +2 so, the resulting compound is XO.

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