1.

The bond order of \[He_{2}^{+}\] molecule ion is [Pb. PMT 2000; Pb CET 2001]

A.                 1             
B.                 2
C.                 \[\frac{1}{2}\]   
D.                 \[\frac{1}{4}\]
Answer» D.                 \[\frac{1}{4}\]


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