Number of carbon atoms in parent 'C' chain

Number of carbon atoms in parent carbon chain of iso-octane is :

{:(OH), (|),(CH_(2)-C-CH_(2)-COOH),(" "||),(" "CH),(" "|),(" "CH_(3)):} Total number of carbon atoms in parent carbon chain is :-

{:(OH), (|),(CH_(2)-C-CH_(2)-COOH),(" "||),(" "CH),(" "|),(" "CH_(3)):} Total number of carbon atoms in parent carbon chain is :-

The number of carbon atom in parent chain of following with its IUPAC name?

The number of carbon atom in parent chain of following with its IUPAC name?

Number of carbon atoms in the main chain.

The total number of carbon atoms in phytol chain is