In the alkane H3C – CH2 – C(CH3)2 – CH2 – CH(CH3)2, identify 1°,2°,3° carbon atoms and give the number of H atoms bonded to each one of these.


The given alkane is H3C – CH2 – C(CH3)2 – CH2 – CH(CH3)2 having the following structure: -


Now, 1° carbon atoms are those which are bonded to only one carbon atom i.e., they have only one carbon atom as their neighbour. Our given structure has five 1° carbon atoms and fifteen hydrogen atoms attached to it.


2° carbon atoms are those which are bonded to two carbon atoms i.e. they have two carbon atoms as their immediate neighbours. Our given structure has two 2° carbon atoms and four hydrogen atoms attached to it.


3° carbon atoms are those which are bonded to three carbon atoms i.e. they have three carbon atoms as their immediate neighbours. Our given structure has one 3° carbon atom and only one hydrogen atom is attached to it.


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