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Select incorrect order$(s)$ of electronegativity of element is/are

• A
  $E.N.$ of $F-$ atom on pauling scale $> E.N.$ of $N-$ atom on pauling scale
• B
  $E.N.$ of $Cl-$ atom in $Cl_2O_7 > E.N.$ of $Cl-$ atom in $Cl_2O_5$
• ✓
  $E.N.$ of $C-$ atom in $CH_4 > E.N.$ of $C-$ atom in $CO_2$
• D
  $E.N.$ of $Cu^{2+} > E.N.$ of $Cu^+$