How many covalent bonds are there in a molecule of ethane, C2H6?
Covalent bonds are the bonds which are formed due to sharing of electrons between the two atoms. The structure of ethane i.e. C2H6 is as follows:

As it is seen from above structure, the straight lines between atoms, depicts the bonds. So, there are 7 covalent bonds in a molecule of ethane.
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