MCQ
Incorrect set is

 $(a)$ Ionisation energy $(Na < Li < B < Be)$

$(b)$ Electron affinity $(N < P < O < S)$

$(c)$ Electron negativity $(S < O < Cl < F)$

$(d)$ Atomic radii $(F < N < O < Na)$

  • A
    $a$
  • B
    $a\,,\,b$
  • C
    $a\,,b\,,c$
  • $c,\,d$

Answer

Correct option: D.
$c,\,d$
d
${\text{E}}{\text{.N }} \Rightarrow \,{\text{F  >  O  >  Cl  >  S}}$

${\text{At}}{\text{.radii }} \Rightarrow \,Na{\text{  >  N  >  O  >  F}}$

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