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4. Structure of SO2 molecule :
Sulphur atom is SP2 hybridised.
But bond angle is reduced to 119º from 120º due to repulsion of lone pair of electrons.
S and O are bonded by σ bond (sp2 – p overlaps) and π bond due to pπ – pπ and dπ
- pπ overlap.
But both π bonds are identical due to resonance.
(i) Sulphuric acid :
1. Contact process of manufacture :
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S.Y.J.C. Science - Chemistry - Part I