Number of carbon in parent carbon chain in the following compound

Number of carbon atoms in parent 'C' chain

How many carbon atoms are present in the parent chain in the following compound ?

How many carbon atoms are present in the parent chain in the following compound ?

Number of carbon atoms in the main chain.

Number of 3^(@) and 2^(@) carbon atoms in the following compound are:

How many carbon atom presnt in the parent chain in the given following compound :

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

Number of carbon atoms in the principle carbon chain in the given compound are:- CH_(3)-CH_(2)-underset(CH_(2))underset(||)C-COOH