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Standard XII
Chemistry
Question

Statement-1 : Electron affinity of fluorine is less than that of chlorine.
Statement-2 : Chlorine can accommodate an electron by utilising its vacant 3d-orbital.
  1. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
  2. Statement-1 is True, Statement-2 is True; Statement-2 is not a correct explanation for Statement-1
  3. Statement-1 is True, Statement-2 is False
  4. Statement-1 is False, Statement-2 is True

A
Statement-1 is True, Statement-2 is False
B
Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
C
Statement-1 is False, Statement-2 is True
D
Statement-1 is True, Statement-2 is True; Statement-2 is not a correct explanation for Statement-1
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Solution
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The electron affinity of fluorine is less than chlorine because fluroine is exceptionally small in size because of which energy has to be supplied to introduce an extra electron to overcome the electronic repulsions between the incoming electron and the electrons already present.

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