h) CH3 CH3 - CH2 - CH, j)

For naming in IUPAC follows following rules:

• The longest chain rule dictates that the parent hydrocarbon be found and then named. The parent chain of the molecule in question is usually the longest carbon atom chain, whether it is straight or a chain of another shape.
• The locants with fewer numbers: the carbon atom in the parent hydrocarbon must be numbered using natural numbers, starting at the end with the carbon atom that bears the substituents receiving the lowest number.
• There are several instances with the same substituent: prefixes such as di, tri and others are used to indicate the total number of the same substituent in the supplied chemical compounds.
• Naming of distinct substituents: In organic compounds with several substituents, the appropriate substituents are listed in the IUPAC nomenclature in alphabetical order.
• Various substituents at the same location are given different names: the substituents are named in ascending alphabetical order when two different substituents are present at the same location of the organic compound.
• Complex substituents in organic compounds with branched structures must be referred to as substituted aklyl groups, with the carbon linked to the substituent group being numbered as one. In the IUPAC nomenclature of related compounds, these branching and related compounds must be written in brackets.