Tag Archives: FSc chemistry

Elements & Periodicity

QUESTION:

Which of the following has strongest basic character?

OPTIONS:

  • P2O3
  • Al2O3
  • MgO
  • Na2O3

CORRECT ANSWER:

Na2O3

EXPLANATION:

Basic character of oxides decrease within a period from left to right. All the given elements are in the period 2 and Na is the left most element of period 2.

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