Question

In which of the following pairs of elements the
electronegativity of first element is less than that
of second element -
(1) Zr, Hf
(2) K, Rb
(3) CI, S
(4) None of the above

also explain please!​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:none of the above

Explanation:

See electronegative table