Why is CO2 a linear molecule while SO2 a non-linear molecule?

Why is CO2 a linear molecule while SO2 a non-linear molecule?
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Ans. In SO2 molecule there are two bond pairs and one lone pair of electron .Due to repulsion by lone pair its bond angle decreases from 120° to 119.5° hence it is not linear whereas in CO2 molecule there is no lone pair of electron due to which it has linear geometry.
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