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How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane?

User Myth Rush
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the answer to this item is 5 carbons. then the sub one is 3 !

User Gwyn Howell
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We see in the given name of the hydrocarbon that the root word is pentane from 2,2,4-trimethylpentane. Pentane is a hydrocarbon chain that contains 5 carbon atoms. Therefore, the answer to this item is 5 carbons. 
User Uri Shalit
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