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JEE Advanced Model Paper 7 with solutions for online practice

Passage-2

Molecular orbital’s i.e bonding and anti bonding molecular orbitals are obtained by linearcombination of atomic orbitals of the bonded orbitals. Filling of electrons occurs in MO inincreasing order of energy and the electronic configuration thus helps in calculating the bondorder.
B.O. =

(Nb−Na) ; B.O. ∞ Bond energy ∞

Bond‌length

Question : 55

Total: 66

Which of the following statement is incorrect

Among O2+ , O2 and O2− . The correct order of bond length is O2− > O2 > O2+
He2 molecular doesnot exist as the bonding and anti-bonding orbital cancel each other.
O2 , O2− and B2 molecules are paramagnetic
In F2 molecule, the energy of σ 2 Pz is more than π2Px and π2Py

Validate

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