Which option is correct about IUPAC nomenclature for branched-chain saturated hydrocarbon? The position of the alkyl group is indicated by writing the number of hydrogen atoms to which it is attached. The IUPAC name of the compound is obtained by writing the 'position and name of alkyl group' just before the name of 'parent hydrocarbon'.

Which option is correct about IUPAC nomenclature for branched-chain saturated hydrocarbon? The position of the alkyl group is indicated by writing the number of hydrogen atoms to which it is attached. The IUPAC name of the compound is obtained by writing the 'position and name of alkyl group' just before the name of 'parent hydrocarbon'. Correct Answer Option 2 is correct

The correct answer is 2 i.e. Option 2 is correct.

Explanation:

  • To name the saturated hydrocarbons having branched chains by the IUPAC method, we should remember the following rules:
    • The longest chain of carbon atoms in the structure of the compound is found first.
      • The compound is then named as a derivative of the alkane hydrocarbon which corresponds to the longest chain of carbon atoms.
    • The alkyl group present as side chains are considered as substituents and named separately as methyl or ethyl groups.
    • The carbon atoms of the longest carbon chain are numbered in such a way that the alkyl groups get the lowest possible number.
    • The position of the alkyl group is indicated by writing the number of carbon atoms to which it is attached.
    • The IUPAC name of the compound is obtained by writing the 'position and name of alkyl group' just before the name of 'parent hydrocarbon'.

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