Draw the structure of following molecules &arrange them in decreasing order of bond angles:- H2O , NH3 , CH4, CO2.
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H20 has a bent structure (like a V, a very flat V)
and a bond angle of around 104.5 degree.
NH3 is tetrahedral with a bond angle which is 107(slightly lesser than the tetrahedral angle.)
CH4 is tetrahedral with a bond angle of 109 degree.
CO2 is linear and has a bond angle of 180 degree.
Hence decreasing order of bond angle is CO2, CH4, NH3 , H2O
and a bond angle of around 104.5 degree.
NH3 is tetrahedral with a bond angle which is 107(slightly lesser than the tetrahedral angle.)
CH4 is tetrahedral with a bond angle of 109 degree.
CO2 is linear and has a bond angle of 180 degree.
Hence decreasing order of bond angle is CO2, CH4, NH3 , H2O
Rishirajbhandari2003:
thanks !very much.
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