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  • The Language of Chemistry - 1
  • The valency of phosphorous is 3, but that of oxygen is 2....
Multiple choice

The valency of phosphorous is 3, but that of oxygen is 2. What will be the molecular formula of phosphorous oxide?

  1. $P_3O_2$
  2. $2PO_3$
  3. $P_2O_3$
  4. $3PO_2$
  5. $P_4O_10$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Molecular formula is derived by interchanging valencies, i.e. P2O3.

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