The valency of oxygen in most of its compounds is:
Correct answer: B. 2
Oxygen has six electrons in its outer shell and needs two more to complete it, so it usually forms two bonds, as in water (H₂O).
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Answer and explanation
The correct answer is B. 2
Oxygen has six electrons in its outer shell and needs two more to complete it, so it usually forms two bonds, as in water (H₂O).
Topic: Atoms, Elements and Alloys MCQs · Subject: Everyday Science