NEET Chemistry · Hard

Classification of Elements and Periodicity in Properties: Anomalies MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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AnomaliesHardQuestion 30015

Question

Electron gain enthalpy of chlorine is more negative than fluorine mainly because:

  1. A
    fluorine is too small and has greater interelectronic repulsion
    Correct
  2. B
    chlorine has lower nuclear charge
  3. C
    fluorine is metallic
  4. D
    chlorine has fewer electrons

Correct answer

fluorine is too small and has greater interelectronic repulsion

Explanation

Compact 2p orbitals in fluorine create repulsion for the incoming electron.