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Which pair of elements has maximum electronegativity difference?
AIIMS 2019
A
Na and F
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B
Na and Cl
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C
Na and Br
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D
Li and F
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Solution
The correct option is ANa and F Among Li and Na; Na is more electropositive.
Among F,Cland Br; F is most electronegative.
So, Na and F will have the maximum electronegativity difference.