Alkanes, alkenes, and alkynes In the space below, diagram and label three molecules:

1. Propane

2. Propene

3. Propyne

Use simple Lewis structures (two-dimensional stick figures) such as the one below.

Figure 1: Example of a Lewis structure (stick-figure) diagram

(Hint: Double bonds are represented with two parallel lines (e. g. C=C); triple bonds with three (e. g. C≡C)) PLEASE HELP ILL GIVE 100 POINTS NO GAMES RIGHT ANWSER ONLY

14,16 18 reacts with group

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.