Question

A molecule of an unsaturated hydrocarbon must have

1) at least one single carbon-carbon bond
2) at least one multiple carbon-carbon bond
3) two or more single carbon-carbon bonds
4) two or more multiple carbon-carbon bonds

Answer 1

2) at least one multiple carbon-carbon bond.

Step-by-step explanation:

• An unsaturated hydrocarbon must have a double or triple C-C bond which is unsaturated bond that means it is not saturated with atoms.

• Saturated hydrocarbon is the hydrocarbon in which all C-C bonds are single.

So, A molecule of an unsaturated hydrocarbon must have 2) at least one multiple carbon-carbon bond.