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JIPMER2018ChemistryClassification of Elements and Periodicity in Properties

Valence electrons in the element X are 3 and that in element Y is 6. Most probable compound formed from X and Y is

Options

  1. AX₂ Y
  2. BX Y₂
  3. CX₆ Y₃
  4. DX₂ Y₃

Correct answer

D. X₂ Y₃

Step-by-step solution

Valence electrons in X =3 Valence electrons in Y =6 Thus, X is electropositive and Y is electronegative, X can lose three electrons and Y can gain two electrons to attain stable configuration. Hence, X exists as X ³⁺ and Y as Y ²⁻ and compound is X₂ Y₃ .

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