Discussion Forum : General Organic Chemistry
Question -


The compound which has only primary and tertiary carbons is?

Options:
A .   2-methylbutane
B .   2,3-dimethylbutane
C .   2-chloropropane
D .   2,2- dimethylpropane
Answer: Option B
:
B

C1H3  C3H|C2H3  C5H|C4H3  C6H3


Carbons labelled 2 & 3 are tertiary carbons, it is carbon attached with 3 other carbon atoms and rest of the carbons are primary in nature. 



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