Which type of molecule is shown below

Which type of molecule is shown below? O A. Alkane O B. Alkyne O C. Aromatic D. Alkene Which type of molecule is shown below? O A. Alkane O B. Alkyne O C. Aromatic D. Alkene

SOLUTION :
ANS : A. Alkane.
EXPLANATION :
Alkanes are chemical compund that consist of carbon and hydrogen
atoms, so they are also called hydrocarbons.
The chemical structure of alkanes only consists of single bonds.
The formula for Alkanes is (CnH2n+2). Each carbon atom forms four
bond and each hydrogen atom forms one bond.
So, CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3
you can see that they only contain single bond and and each
carbon atom forms four bond and each hydrogen atom forms one
bond.
Here, number of carbo is 9 and hydrogen is 20 . That means this
compund follow CnH2n+2.
That’s why this hydrocarbon is alkane.
** An Alkyne is an unsaturated hydrocarbon containing at least
one carbon-carbon triple bond. The general chemical formula for
Alkyne is (CnH2n-2).
So, in the above hydrocarbon have no any carbon-carbon triple
bond also it doesn’t not follow the (CnH2n-2) formula.
That’s why the hydrocarbon isn’t Alkyne.
**Aromatic compounds are substance that consist of one or more
rings that contain alternative single or double bonds in its
chemical structure. It has (4n+2)π electrons.
So, the above hydrocarbon is not aromatic.
**An alkene is an unsaturated hydrocarbon containing at least
one carbon-carbon double bond. The general chemical formula for
alkene is (CnH2n).
in the above hydrocarbon have no any carbon-carbon double bond.
So, this is not alkene.

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