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Nomenclature of Alkynes Video Lecture | Chemistry Class 11 - NEET

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FAQs on Nomenclature of Alkynes Video Lecture - Chemistry Class 11 - NEET

1. What is the nomenclature of alkynes?
Ans. The nomenclature of alkynes is a system of naming these organic compounds based on specific rules established by the International Union of Pure and Applied Chemistry (IUPAC). It involves identifying and naming the parent hydrocarbon chain, determining the position of the triple bond, and indicating any substituents or functional groups present.
2. How do you name alkynes with substituents?
Ans. When naming alkynes with substituents, the substituents are named as prefixes and placed in front of the parent hydrocarbon chain. The position of the triple bond is indicated by a number, starting from the end nearest to the triple bond. If there are multiple substituents, they are listed in alphabetical order and assigned the lowest possible number combination.
3. What are the common substituents in alkynes nomenclature?
Ans. Common substituents in alkynes nomenclature include methyl (CH3-), ethyl (C2H5-), propyl (C3H7-), butyl (C4H9-), and many others. These substituents are named as prefixes and added to the parent hydrocarbon chain's name to indicate their presence in the molecule.
4. How do you indicate the position of the triple bond in alkynes nomenclature?
Ans. The position of the triple bond in alkynes nomenclature is indicated by a number. The numbering starts from the end nearest to the triple bond, and the triple bond carbon atoms are assigned the lowest possible numbers. The position number is included as a prefix before the parent hydrocarbon chain's name.
5. Can alkynes have functional groups? How are they named?
Ans. Yes, alkynes can have functional groups. When naming alkynes with functional groups, the functional group is named as a suffix and is given the highest priority in the nomenclature. The position of the triple bond is indicated by a number, and the functional group's name is added after the parent hydrocarbon chain's name. It is crucial to follow the IUPAC rules for naming functional groups and their positions in alkynes.
195 videos|337 docs|190 tests
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