Question

Which one of the following is the correct statement?
(a) O₂ molecule has bond order 2 and is diamagnetic
(b) N₂ molecule has bond order 3 and is paramagnetic
(c) H₂ molecule has bond order zero and is diamagnetic
(d) C₂ molecule has bond order 2 and is diamagnetic

Answer 1

Answer:

C₂ molecule has bond order 2 and is diamagnetic is right answer ✔️✔️✔️✔️✔️

Answer 2

Correct statement from the above is:

1. For O2,

Total electrons = 16

Electronic configuration = KK (σ2s2)(σ∗2s2 )(π2px2)(π2py2)(σ2pz2)(π∗2px 1)(π∗2py1)

It paramagnetic due to presence of 2 unpaired electrons.

Bond order = 8-4/2 = 2

2. For N2,

Total electrons = 14

Electronic configuration =

KK (σ2s2)(σ∗2s2)(π2px2)(π2py2)(σ2pz2)

Diamagnetic in nature

Bond order = 10-4/2 = 3

3. For H2,

Total electrons = 2

Electronic configuration=  (σ1s2)

Diamagnetic in nature

Bond order = 2-0/2 = 1

4. For C2,

Total electrons = 12

Electronic configuration = KK(σ2s2)(σ∗2s2)(π2px2)(π2py2)

Diamagnetic in nature

Bond order = 8-4/2 = 2

• It is clear that (d) is correct from above following statement.