What is the hybridization of the carbon atom in the acetylene molecule?
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Solution
Concept of hybridization:
With increase in s-character, bond strength increases consequently and bond length decreases.
So, the increasing order of bond length of different hybrid orbitals is given below:
Hybridization of acetylene molecule:
During hybridization, the sigma bond is formed when one orbital overlaps with each carbon atom, and two bonds are formed when the second orbital on each carbon overlaps with the orbital of .
In this, the carbon atom has two orbitals that are half-filled.
Here, the orbitals participate in triple bond formation.
Thus, the hybridization of acetylene molecule is hybridization and has linear geometry.