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Question
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.
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Solution
n-butane
This one has two end-atoms (=primary) and two in-betweens (=secondary).
Condensed this would be
CH3−CH2−CH2−CH3 or just C4H10
isobutane
This one has three end-atoms (=primary), and one that is attached to three others (=tertiary).
Condensed this could be:
CH3−CH(CH3)−CH3 or even: CH(CH3)3
n-butane
This one has two end-atoms (=primary) and two in-betweens (=secondary).
Condensed this would be
CH3−CH2−CH2−CH3 or just C4H10
isobutane
This one has three end-atoms (=primary), and one that is attached to three others (=tertiary).
Condensed this could be:
CH3−CH(CH3)−CH3 or even: CH(CH3)3
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