Why is the common name of 2-methyl-pentane called 'iso-butane'? What i – InterviewSolution

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1.	Why is the common name of 2-methyl-pentane called 'iso-butane'? What is the meaning of the word 'iso'? And, why is it called 'butane' when the longest possible continuous carbon chain is carrying 3 carbon atoms instead of 4?
Answer» Why is the common name of 2-methyl-pentane called 'iso-butane'? What is the meaning of the word 'iso'? And, why is it called 'butane' when the longest possible continuous carbon chain is carrying 3 carbon atoms instead of 4?

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