Concept explainers
(a)
Interpretation:
The name of the following molecule should be determined.
Concept Introduction:
Compounds consist of carbon and hydrogen is known as hydrocarbons.
Rules of naming
- First choose the longest continuous chain of carbon atoms having double bond known as parent chain.
- The numbering of parent chain should be done in a way that the double bond and substituents get the lowest number.
- The root name of the carbon chain is same as in case of
alkanes , but “−ane” ending is replaced by “−ene” - The appropriate name should be given to every alkyl group and denote its position on the parent chain with the number.
- The alkyl groups are written in alphabetical order.
(b)
Interpretation:
The name of the following molecule should be determined.
Concept Introduction:
Compounds consist of carbon and hydrogen is known as hydrocarbons. Unsaturated hydrocarbon having double bond is known as alkene having general molecular formula
Rules of naming alkenes are:
- First choose the longest continuous chain of carbon atoms having double bond known as parent chain.
- The numbering of parent chain should be done in a way that the double bond and substituents get the lowest number.
- The root name of the carbon chain is same as in case of alkanes, but “−ane” ending is replaced by “−ene”
- The appropriate name should be given to every alkyl group and denote its position on the parent chain with the number.
- The alkyl groups are written in alphabetical order.
(c)
Interpretation:
The name of the following molecule should be determined.
Concept Introduction:
Compounds consist of carbon and hydrogen is known as hydrocarbons. Unsaturated hydrocarbon having double bond is known as alkene having general molecular formula
Rules of naming alkenes are:
- First choose the longest continuous chain of carbon atoms having double bond known as parent chain.
- The numbering of parent chain should be done in a way that the double bond and substituents get the lowest number.
- The root name of the carbon chain is same as in case of alkanes, but “−ane” ending is replaced by “−ene”
- The appropriate name should be given to every alkyl group and denote its position on the parent chain with the number.
- The alkyl groups are written in alphabetical order.
(d)
Interpretation:
The name of the following molecule should be determined.
Concept Introduction:
Compounds consist of carbon and hydrogen is known as hydrocarbons. Unsaturated hydrocarbon having double bond is known as alkene having general molecular formula
Rules of naming alkynes are:
1. First choose the longest continuous chain of carbon atoms having triple bond known as parent chain.
2. The numbering of parent chain should be done in a way that the triple bond and substituents get the lowest number.
3. The root name of the carbon chain is same as in case of alkanes, but “−ane” ending is replaced by “−yne”
4. The appropriate name should be given to every alkyl group and denote its position on the parent chain with the number.
5. The alkyl groups are written in alphabetical order.

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Chapter 7 Solutions
Student Solutions Manual for Oxtoby/Gillis/Butler's Principles of Modern Chemistry, 8th
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