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AIIMS2019ChemistryClassification of Elements and Periodicity in Properties

Which pair of elements has maximum electronegativity difference?

Options

  1. ALi and F
  2. BNa and F
  3. CNa and Br
  4. DNa and Cl

Correct answer

B. Na and F

Step-by-step solution

Among Li and Na , Na is more electropositive. Among F , Cl and Br , F is most electronegative. So, Na and F will have maximum electronegativity difference. E.N. value : 3.983 .16 2.96 2.66 0.98 0.93

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