Q14. Which of the following has maximum number of unpaired electrons?


(1) Mg2 +
(2) Ti3 +
(3) V3 + 
(4) Fe2 +

I believe its 4) Fe+2
  • -4
4 is correct
  • -4
4 th is correct.
  • -6
4 option is absurdly right
  • -2
Mg2+ : 1s2 2s2 2p6 : no unpaired electron?Ti3+ : 1s2 2s2 2p6 3s2 3p6 3d1 : one unpaired electron?V3+ : 1s2 2s2 2p6 3s2 3p6 3d1 : two unpaired electrons?Fe2+ : 1s2 2s2 2p6 3s2 3p6 3d6 : four unpaired electrons
4 is correct
  • 5
Mg2+ : 1s2 2s2 2p6 : no unpaired electron?
Ti3+ : 1s2 2s2 2p6 3s2 3p6 3d1 : one unpaired electron
?V3+ : 1s2 2s2 2p6 3s2 3p6 3d1 : two unpaired electrons
?Fe2+ : 1s2 2s2 2p6 3s2 3p6 3d6 : four unpaired electrons
4 is correct
  • -3
Fe+2
  • -2
Fe2+
  • -1
Which of the following has maximum number of unpaired electron
  • 2
Fe2+
  • 1
Here's your answer

  • 1
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