Questions
Which of the following species has/have five unpaired electrons?
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By Expert Faculty of Sri Chaitanya
a
Cr
b
Cr3+
c
Mn2+
d
Fe3+
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Correct option is C
Mn=1s2 2s2 2p6 3s2 3p6 4s2 3d5Mn+2=1s2 2s2 2p6 3s2 3p6 4s0 3d5 =5 unpaired electronsFe=1s2 2s2 2p6 3s2 3p6 4s2 3d6Fe+3 =1s2 2s2 2p6 3s2 3p6 4s0 3d5 =5 unpaired electronsSimilar Questions
The pair of ions having same electronic configuration is
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