According to the $VB$ theory,when is a bond not formed between two atoms? Give examples.
(N/A) According to the $VB$ theory,a bond is not formed if the two atomic orbitals are not oriented along the common internuclear axis,as this leads to zero overlap.
Examples:
$1$. The overlap between an $s$-orbital and a $p_x$-orbital oriented perpendicular to the internuclear axis ($z$-axis) results in zero overlap.
$2$. The overlap between a $p_x$-orbital and a $p_y$-orbital oriented along the same internuclear axis ($z$-axis) also results in zero overlap.
Examples:
$1$. The overlap between an $s$-orbital and a $p_x$-orbital oriented perpendicular to the internuclear axis ($z$-axis) results in zero overlap.
$2$. The overlap between a $p_x$-orbital and a $p_y$-orbital oriented along the same internuclear axis ($z$-axis) also results in zero overlap.
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Similar Questions
The number of $\sigma$ and $\pi$ bonds present in an ethylene molecule is respectively:
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: Zero orbital overlap is an out-of-phase overlap.
Reason $R$: It results due to different orientation/direction of approach of orbitals.
In the light of the above statements,choose the correct answer from the options given below.
Assertion $A$: Zero orbital overlap is an out-of-phase overlap.
Reason $R$: It results due to different orientation/direction of approach of orbitals.
In the light of the above statements,choose the correct answer from the options given below.
Explain $\sigma$ bond formed by $s-s$,$s-p$ and $p-p$ overlapping.
Difficult
View SolutionIf the internuclear axis of a diatomic molecule is $z$,then the overlap of $p_x$ and $p_y$ orbitals results in the formation of ........
Medium
View SolutionWhich of the following contains $p\pi - p\pi$ bonding?
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