Question

which of the following covalent compounds does not exist
(a)o2
(b)H2
(c)N2
(d)C2​

Answer 1

Answer:

d.. C2

is the answer for your question

Answer 2

Answer:

Among the following covalent compounds $C_2$ does not exist.

Explanation:

The family of diatomic molecules includes the carbon molecule, which is made up of two carbon atoms bound together by a covalent connection. The carbon molecule's electrical configuration is described as

$C_2: (\sigma 1s)^2 (\sigma ^*1s)^2(\sigma2s)^2 (\sigma^*2s)^2 (\pie 2p^2_x= \pie 2p^2_y)$

Bond order is equal to $\frac{8-4}{2}$ (number of electrons in the bonding MOT minus number of electrons in the antibonding MOT).

Bond order: 2

$C_2$  is diamagnetic in nature because it lacks unpaired electrons. In addition, the double bond in  $C_2$  is composed of both pi bonds since pi bonding orbitals have four electrons. Hence, it does not exist as a covalent compound.

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