According to molecular orbital theory 1) ${C_2}^{2 - }$ is expected to be dia magnetic 2) ${O_2}^{2 + }$ is expected to have a longer bond length than ${O_2}$ 3) ${N_2}^ + $ and ${N_2}^ -$ have the same bond orders 4) $H{e_2}^ + $ has the same energy as two isolated $He$ atom

JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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Analyzing +4 | -1

According to molecular orbital theory

1)

{C_2}^{2 - }

is expected to be dia magnetic

2)

{O_2}^{2 + }

is expected to have a longer bond length than

{O_2}

{N_2}^ +

and

{N_2}^ -

have the same bond orders

4)

H{e_2}^ +

has the same energy as two isolated

He

atom

View answer and explanation

Correct option: A

1,3

Option A is correct because

{C_2}^{2 - }

is diamagnetic and

{N_2}^ +

and

{N_2}^ -

have the same bond orders.