Pi Bonds MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET
Quick Facts
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p?-p? and p?-d? bonding is considered one of the most asked concept.
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13 Questions around this concept.
Solve by difficulty
EASYThe number and type of bonds in ion in CaC2 are :
How many $p \pi-p \pi$ and $p \pi-d \pi$ bonds are present in $\mathrm{SO}_3$ ?
The outer orbitals of C in ethene molecule can be considered to be hybridized to give three equivalent $s p^2$ orbitals. The total number of sigma $(\sigma)$ and pi $\pi$ bonds in ethene molecule is
Which one of the following molecules contains no $\pi$ bond?
Concepts Covered - 1
p?-p? and p?-d? bonding
p?-p? Bonding
When one p-orbital of one atom is vacant and the other atom has a lone pair of electrons then if this lone pair is donated to the vacant p-vacant orbital then the type of bond formed is known as p?-p? bonding.
For example, Boron ib BF3 has one empty p-orbital and p-orbital of fluorine contains lone pair, thus in this case boron acts as a Lewis acid and fluorine as a Lewis base. Thus, Fluorine donates its lone pair to boron and thus forms p?-p? bonding.
p?-d? Bonding
When one d-orbital of one atom is vacant and the other atom has a lone pair of electrons then if this lone pair is donated to the vacant d-vacant orbital then the type of bond formed is known as p?-d? bonding. In other words, p?-d? bond is formed when p orbital of one atom and d orbital of another atom overlap laterally.
For example, PO43- has a p?-d? bonding because the lateral overlap of p-orbital of oxygen atom with d-orbital of sulphur atom occurs.
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