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Periodic Table and Periodicity question

2013 · Q105
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Periodic Table and Periodicity question

2013 · Q105

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1
Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for C, Ca, Al, F and O?
  1. A
    Alll < Ca < O < C < F
  2. B
    Alll < O < C < Ca < F
  3. C
    C < F < O < Alll < Ca
  4. D
    Ca < Alll < C < O < F
View written solutionFree

Correct answer: D

Electron gain enthalpy becomes less negative from top to bottom in a group while it becomes more negative from left to right within a period.

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