Question
Define hybridisation. Explain the structure of $\mathrm{C}_2 \mathrm{H}_2$ with orbital diagram.
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Answer
Hybridisation is process of intermixing of atomic orbitals of slightly different energies which give rise to hybridised orbitals having exactly equal energy, identical shape and more stability.
In $\text{H}-\text{C}\equiv\text{C}-\text{H}$ each 'C' is 'sp' hybridised, therefore, it has linear shape.
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