Answer 1:
This is a very basic question in organic
chemistry and has been well defined. The
information below was taken from the following
website:
organic
chemistry
You can check it out and get
more information.
Alkanes are hydrocarbons (compounds
containing only C and H) that have single
covalent bonds joining the carbon atoms.
The molecular formula of all alkanes fits the
expression CnH2n+2,
where n is the number of carbon atoms.
Alkenes are hydrocarbons (compounds
containing only C and H) that have one
or more C=C double bonds (two C atoms are
linked by 4 shared electrons). The general formula
is CnH2n, which is
two hydrogen atoms less than the corresponding
alkane.
Alkynes are hydrocarbons (compounds
containing only C and H) that have one or more
triple bonds (two C atoms are joined by 6 shared
electrons). The molecular formula fits the formula
CnH2n-2 and has
therefore four hydrogen atoms less than the
corresponding alkane.
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