Which of the following posses 1^(@), 2^(@), 3^(@) and 4^(@) carbon?

1.	Which of the following posses 1^(@), 2^(@), 3^(@) and 4^(@) carbon?
Answer» 2, 3-dimethyl hexane 2, 3, 3-trimethyl hexane 2, 2-dimethyl hexane 2, 3, 4-trimethyl hexane Solution :`overset(1^(@))(C )H_(3)- UNDERSET(underset(CH_(3))(\|))overset(3^(@))(C )H-underset(underset(CH_(3))(\|))overset(overset(CH_(3))(4^(@)\|))(C )-overset(2^(@))(C )H_(2)- overset(2^(@))(C )H_(2)- overset(1^(@))(C )H_(3)`

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