MCQ
Which element has the highest valency with respect to oxygen?
  • A
    Sodium
  • B
    Aluminium
  • Chlorine
  • D
    Sulphur

Answer

Correct option: C.
Chlorine
The valence of an element with respect to oxygen is twice the number of oxygen atoms with which one atom of that element chemically combines.
The valency of chlorine with respect to oxygen is $7$.

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