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QUESTION
Q58) The electronegativity follows the order .. [ Pb. CET 1996]




SOLUTION

F and O belong to second period and E.N. of F >O, Cl and Br belong to 2rd and 4th periods respectively. Hence E.N. order is Cl > Be.
Thus overall sequence of E.N. is F > O > Cl > Br
Answer: (a)