Q

Element X is tetravalent and element Y is divalent. The compound formed by these two elements will be:

RRB Group D, 12-Nov-18 S-2 2018
✓ Answer: A XY2
The correct formula for the compound formed by tetravalent element X and divalent element Y is XY2. Since element X can form four bonds and element Y can form two, two Y atoms are needed to balance the four valence electrons of one X atom.
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