GOB Chemistry
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Give the condensed structural formula of 4-ethyl-2-methylheptane.
CH3CH(CH3)CH2CH(CH2CH3)CH2CH2CH3
CH3CCH3CH2CCH2CH2CH2CH2CH3
CH3(CH3)3CH2CH(CH3)(CH2)2CH3
(CH3)3(CH2)4CH