AIIMS2003Chemistry-Chemical Bonding and Molecular Structure
AIIMS 2003 Chemistry Magnetic Properties MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The paramagnetic species is
A
K₂O
B
SiO₂
C
TiO₂
D
BaO₂
Correct Answer
Option A
Detailed Explanation
KO2 is a superoxide of potassium containing superoxide ion, O2- which has a three electron bond. Thus this ion can be represented as [O - O - O]. The presence of one unpaired electron in three electron bond makes this ion paramagnetic.
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