In a π (pi) bond formation, is necessary for one of the below cri...
parallel orientataion of p orbitals are necessary for proper overlapping and formation of pie bond.
View all questions of this test
In a π (pi) bond formation, is necessary for one of the below cri...
For pi bonding the orbitals overlap in a liner manner such that inter nuclear axis remains parallel so option b is correct
In a π (pi) bond formation, is necessary for one of the below cri...
Answer:
In pi bond formation, the correct criterion is the parallel orientation of the two p orbitals on adjacent atoms (option B).
Explanation:
To understand why parallel orientation is necessary for pi bond formation, let's first define what a pi bond is.
A pi bond is a type of covalent bond that occurs when two p orbitals overlap side by side, allowing for the sharing of electron density. It is formed by the sideways overlap of two parallel p orbitals on adjacent atoms.
Here's why option B is the correct answer:
1. Trigonal orientation of the two p orbitals on adjacent atoms (Option A):
Trigonal orientation refers to the arrangement of three atoms in a triangle. While this is a valid arrangement for sigma bond formation (which involves the head-on overlap of atomic orbitals), it is not relevant to pi bond formation. Pi bonds are formed by the sideways overlap of p orbitals, not their trigonal arrangement.
2. Pentagonal orientation of the two p orbitals on adjacent atoms (Option C):
Pentagonal orientation refers to the arrangement of five atoms in a pentagon. Similar to the trigonal orientation, this arrangement is not relevant to pi bond formation. Pi bonds are formed by the sideways overlap of p orbitals, not their pentagonal arrangement.
3. Planar orientation of the two p orbitals on adjacent atoms (Option D):
Planar orientation refers to the arrangement of atoms in a flat plane. While this is a valid arrangement for pi bond formation, it does not specify the correct criterion. The key factor for pi bond formation is the parallel orientation of the p orbitals, not their planar arrangement.
4. Parallel orientation of the two p orbitals on adjacent atoms (Option B):
The parallel orientation of the two p orbitals on adjacent atoms is the correct criterion for pi bond formation. The p orbitals must be aligned in a parallel manner to allow for the sideways overlap, which is necessary for the formation of a pi bond.
In summary, the parallel orientation of the two p orbitals on adjacent atoms is necessary for pi bond formation. This allows for the sideways overlap of the p orbitals, leading to the sharing of electron density and the formation of a pi bond.
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.