Among the following molecules, the molecule with linear shape is: a)Water b)BH3 c)Ch4 d)CO2


(d) CO2

Structure of CO2

The carbon dioxide molecule has two double bonds between the carbon and oxygen atoms. Each double bond is made up of one sigma and one pi bond, so a carbon dioxide molecule contains two sigma and two pi bonds.

  • The bond angle in the carbon dioxide molecule is 180° between both the carbon and the two oxygen atoms, carbon dioxide has a linear structure.
  • As per the hybridisation of CO2 carbon atom is sp hybridization and both oxygen atoms are hybridized by sp2.
  • The two individual bonds formed in the molecule are polar because oxygen is more electronegative than carbon, but because of the cancellation of the dipole moment, the molecule is non-polar.

Further reading

  1. What is the formal charge on each atom in CO2?
  2. Calculate the molecular mass of CO2
  3. What would be the electron dot structure of carbon dioxide which has the formula CO2?

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