MCQ
Correct statements among the following is/are
  • A
    $2^{nd}$ electron gain enthalpy is always endothermic
  • Electronegativity is the property of bonding atoms
  • C
    $Al_2O_3$ and $BeO$ are amphoteric oxide
  • D
    None of these are incorrect

Answer

Correct option: B.
Electronegativity is the property of bonding atoms
b
From left to right in periodic table :-

Metallic character decreases

Non-metallic character increases

$\Rightarrow$ It is due to increase in ionization enthalpy and increase in electron gain enthalpy.

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