Which of the following does not obey the octe | vedclass

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(D) The octet rule states that atoms tend to gain,lose,or share electrons to achieve a stable configuration of $8$ electrons in their valence shell. $

Vedclass · Accepted Answer

$CO$ and $PCl_5$

Vedclass · Answer

(D) The octet rule states that atoms tend to gain,lose,or share electrons to achieve a stable configuration of $8$ electrons in their valence shell. $CO$ (Carbon monoxide) has a total of $10$ valence electrons ($4$ from $C$ and $6$ from $O$). In the structure $:C \equiv O:$,the carbon atom has only $6$ electrons in its valence shell,which is an incomplete octet. $PCl_5$ (Phosphorus pentachloride) has $5$ valence electrons from $P$ and $5$ from $5$ $Cl$ atoms,resulting in $10$ electrons around the central $P$ atom,which is an expanded octet. Therefore,both $CO$ and $PCl_5$ do not obey the octet rule.

$(I)$	Dipole moment	$NF_3 > NH_3 > BF_3$
$(II)$	Covalent bond length	$C-O > N-O > O-H$
$(III)$	Bond order	$C_2 > B_2 > He_2$

Which of the following does not obey the octet rule?

Similar Questions

Which of the following leads to bonding?

Identify the incorrectly matched set from the following:

The decreasing order of bond dissociation energies of $C-C$, $C-H$, and $H-H$ bonds is:

Which of the following orders are correct against the property given?
$(I)$ Dipole moment $NF_3 > NH_3 > BF_3$
$(II)$ Covalent bond length $C-O > N-O > O-H$
$(III)$ Bond order $C_2 > B_2 > He_2$

Which of the following orders is not correct?

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