AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
The correct order of electron gain enthalpy of \(\mathrm{N}, \mathrm{O}, \mathrm{Cl}\), \(\mathrm{Al}\) is
- A \(\mathrm{Cl} < \mathrm{N} < \mathrm{O} < \mathrm{Al}\)
- B \(\mathrm{Al} < \mathrm{N} < \mathrm{O} < \mathrm{Cl}\)
- C \(\mathrm{O} < \mathrm{N} < \mathrm{Al} < \mathrm{Cl}\)
- D \(\mathrm{N} < \mathrm{O} < \mathrm{Cl} < \mathrm{Al}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Al} < \mathrm{N} < \mathrm{O} < \mathrm{Cl}\)
Step-by-step Solution
Detailed explanation
Correct order of electron gain enthalpy:- \(\mathrm{Al} < \mathrm{N} < \mathrm{O} < \mathrm{Cl}\) It is higher for non-metallic elements that have higher electronegativities (higher in magnitude)
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