What is wrong with the name 3 pentene? (a) 3-pentene is wrong because it is numbered from the wrong end. The correct name is 2-pentene (b) Again, 3-methyl-2-butene is wrong because it is numbered from
What is wrong with the name 3 pentene?
(a) 3-pentene is wrong because it is numbered from the wrong end. The correct name is 2-pentene (b) Again, 3-methyl-2-butene is wrong because it is numbered from the wrong end. The correct name is 2-methyl-2-butene. (c) 2-ethyl-3-pentyne is wrong because a longer chain of carbon atoms is possible.

Why is the name 2 methyl 3 pentene incorrect for this compound?
2-vinylpentane is the incorrect name because it ignores the longest continuous carbon chain that contains the functional group. The correct name is 3-methyl-1-hexene.
Why is 2 isopropyl butene incorrect?
If a methyl group is present on the terminal carbon, then the longest chain has four carbon atoms, and the name should be but, not prop. Thus, in the given name, the longest chain rule is not obeyed; the given name is incorrect. Hence, the correct name of the compound is 2-butene.

Why is 2 ethyl propene incorrect?
(a) The given name is 2-ethyl-1-propene. The longest chain contains four C atoms with a double bond between and and a group attached to . Hence, the correct name is 2-methyl-1-butane.
Is 2 pentene saturated or unsaturated?
To give the first carbon atom of the double bond the lowest number (rule 2), we number from the left, so the compound is a 2-pentene….6.3: Unsaturated Hydrocarbons.
IUPAC Name | ethene |
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Molecular Formula | C2H4 |
Condensed Structural Formula | CH2=CH2 |
Melting Point (°C) | –169 |
Boiling Point (°C) | –104 |
What is the correct name for 2 Ethylbutane?
Hence, the correct name of 2-ethylbutane is 3-methylpentane.
What is the correct name of 2 Methylcyclohexene?
2-Methylcyclohex-1-ene-1-carboxylic acid
PubChem CID | 14387270 |
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Structure | Find Similar Structures |
Molecular Formula | C8H12O2 |
Synonyms | 2-Methylcyclohex-1-ene-1-carboxylic acid 2-methylcyclohexene-1-carboxylic acid 2-methyl-1-cyclohexene-1-carboxylic acid 67824-86-6 SCHEMBL757738 More… |
Molecular Weight | 140.18 |
What is the structure of 2 ethyl 1 butene?
C6H12
2-ethyl-1-butene | C6H12 | ChemSpider.
What is the condensed structural formula for 2-Pentyne?
C5H8
2-Pentyne | C5H8 – PubChem.