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Which one of the following names is a correct IUPAC name?
- a)2 - Methyl - 3 - ethylpentane
- b)2 - Ethyl - 3 - methylpentane
- c)3 - Ethyl - 2 - methylpentane
- d)3 - Methyl - 2 - ethylpentane
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following names is a correct IUPAC name?a)2 - Methyl ...
Yes , according to IUPAC nomenclature the alkyl group are placed in alphabetical order with lowest numbering as possible ... And in the second option the compound changes to become 2 , 4 - dimethylhexane..by the IUPAC rule of giving priority to longer chain...
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Which one of the following names is a correct IUPAC name?a)2 - Methyl ...
Explanation:
To determine the correct IUPAC name of the compound, we need to follow the rules of IUPAC nomenclature for naming organic compounds.
Step 1: Identify the longest carbon chain
In this case, we have a pentane as the longest carbon chain.
Step 2: Number the carbon chain
Since there are two substituents, we need to number the carbon chain in a way that gives the lowest possible numbers to the substituents. We start numbering from the end that gives the lower number to the substituent that appears first in alphabetical order.
Step 3: Identify and name the substituents
In this compound, we have two substituents - ethyl and methyl. Ethyl has a higher priority than methyl as it appears first in alphabetical order.
Step 4: Assign the substituent positions
The substituents are located at the 2nd and 3rd carbon positions.
Step 5: Write the IUPAC name
To write the IUPAC name, we use the prefix to indicate the number of carbons in the main chain and the suffix to indicate the functional group present. In this case, the main chain has five carbons, so the prefix is "pent". Since it is a straight chain, we don't need to indicate the position of the functional group.
The correct IUPAC name for the compound is 3-ethyl-2-methylpentane.
To determine the correct IUPAC name of the compound, we need to follow the rules of IUPAC nomenclature for naming organic compounds.
Step 1: Identify the longest carbon chain
In this case, we have a pentane as the longest carbon chain.
Step 2: Number the carbon chain
Since there are two substituents, we need to number the carbon chain in a way that gives the lowest possible numbers to the substituents. We start numbering from the end that gives the lower number to the substituent that appears first in alphabetical order.
Step 3: Identify and name the substituents
In this compound, we have two substituents - ethyl and methyl. Ethyl has a higher priority than methyl as it appears first in alphabetical order.
Step 4: Assign the substituent positions
The substituents are located at the 2nd and 3rd carbon positions.
Step 5: Write the IUPAC name
To write the IUPAC name, we use the prefix to indicate the number of carbons in the main chain and the suffix to indicate the functional group present. In this case, the main chain has five carbons, so the prefix is "pent". Since it is a straight chain, we don't need to indicate the position of the functional group.
The correct IUPAC name for the compound is 3-ethyl-2-methylpentane.
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Which one of the following names is a correct IUPAC name?a)2 - Methyl - 3 - ethylpentaneb)2 - Ethyl - 3 - methylpentanec)3 - Ethyl - 2 - methylpentaned)3 - Methyl - 2 - ethylpentaneCorrect answer is option 'C'. Can you explain this answer?
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