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Q.

Among KO2, AlO2-1 and BaO2 and NO2+ unpaired electron is present in

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a

NO2+ and BaO2

b

BaO2 only

c

KO2 and AlO2-

d

KO2 only

answer is C.

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Detailed Solution

 ionTotal electronsNo.of unpaired electrons
KO2
\large O_2^-
171
\large \large AlO_2^{-1}
\large O_2^{-4}
200
BaO2
\large O_2^{-2}
180
\large NO_2^{+}
\large N\mathop {{O_2}}\limits^ +
220
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