Which of the following possess tertiary carbon ?

1.	Which of the following possess tertiary carbon ?
Answer» Propane n-butane 2-methyl propane 2,2-dimethylpropane Solution :(A) `underset("Propane")(OVERSET(1^(@))(CH_(3))overset(2^(@))(CH_(2))overset(1^(@))(CH_(3)))` (B) `underset("n-Butane")(overset(1^(@))(C_(3))overset(2^(@))(CH_(2))overset(2^(@))(CH_(2))overset(1^(@))(CH_(3)))` (C)`underset("2-Methyl propane")(overset(1^(@))(CH_(3))-underset(""^(1^(@))CH_(3))underset(\|)overset(3^(@))(CH)-overset(1^(@))(CH_(3)))` `underset("2,2-Dimethyl propane")(overset(1^(@))(CH_(3))-underset(""^(1^(@))CH_(3))underset(\|)overset(1^(@))overset(CH_(3))overset(\|)(""^(4^(@))CH)-overset(1^(@))(CH_(3)))`

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