Question

How many single carbon – carbon bonds are present in propane?

Answer 1

Hint :To solve this question, we need to know and understand the structure of the propane and number of carbon and hydrogen atoms involved in it. Propane is a colourless gas and has an odour and is used as a source for energy production often, in the form of LPG (Liquefied petroleum gas) in the combination with some other gases like butane.

Complete Step By Step Answer:
So, propane consists of three carbon atoms and eight hydrogen atoms having a molecular formula - $C_3{H}_8$ .
So, let’s first draw the structure for the better understanding of bonds.

As we can see from the diagram that, there are two single carbon – carbon bonds i.e $C-C$ and eight $C-H$ bonds present .These bonds altogether form a stable propane molecule structure.
Therefore, the answer to our question is how many single carbon – carbon bonds are present in propane $2$ . There are two single carbon – carbon bonds ( $C-C$ ) present in the centre of the atom.

Note :
Often isomerism is important for the compound, because a slight difference in the structure results in the great difference in the physical and chemical properties of the compound. And in the case of propane, we do not have isomers for it, because of the presence of less carbon atoms. As in propane we have only three carbon atoms, and for a side chain to form we need more than three carbon atoms, hence there is no formation of side chain in propane and therefore, no isomer.