Question

The Carbon dioxide molecule contains how many double bonds?

Answer 1

Hint: Carbon dioxide is a colorless gas with a density which is around $ 53\% $ than that of dry air, Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms, It’s bond length is about $ 116.3pm $ and has a linear structure. Its linear structure is supported by an experimentally determined dipole moment of $ 0D $ .

Complete answer:
The Carbon dioxide molecule $ C{O_2} $ , has two double bonds which is illustrated in the figure below:

From the structure it is clear that carbon dioxide has $ 2 $ double bonds with a bond length of $ 116.3pm $ .
$ C{O_2} $ has a contribution of $ 0.04\% $ by volume in the atmosphere, It is an odorless gas with a trigonal crystal structure in solid state and a linear shape. It was discovered by Flemish Chemist Jan Baptist van Helmont.

Carbon dioxide is produced by all aerobic organisms when they metabolize organic compounds present in their diet to produce energy by respiration. It is obtained during decay of organic materials and fermentation of sugars. Carbon dioxide is the most long lived greenhouse gas in the atmosphere and is the major cause of ocean acidification because it dissolves in water to form carbonic acid.

Note: $ C{O_2} $ is used in fire extinguishers and is widely used in making soda glass. It has a melting point of around $ - 56.6^\circ C $ and a molar mass of $ 44.009{\raise0.5ex\hbox{ $ \scriptstyle g $ }
\kern-0.1em/\kern-0.15em \lower0.25ex\hbox{ $ \scriptstyle {mole} $ }} $ . It has a refractive index of around $ 1.00045 $ . In solid state it is known as Dry Ice and is used as a refrigerant in this state. It is also used as an additive in carbonic beverages. It was first liquefied by Sir Humphry Davy and Sir Michael Faraday.