Question

Draw the Lewis structure for the molecule C3H4. How many sigma and pi bonds does it contain?

Answer 1

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Answer 2

Answer :  The Lewis-dot structure of $C_3H_4$ is shown below.

The number of sigma and pi-bonds are 6 and 2 respectively.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $C_3H_4$

As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in $C_3H_4$ = 3(4) + 4(1) = 16

According to Lewis-dot structure, there are 16 number of bonding electrons and 0 number of non-bonding electrons.

The number of sigma and pi-bonds are 6 and 2 respectively.