MHT CET 2023 Chemistry question

What is the number of moles of 'C' atoms present in a mole molecule of alkane if it exhibits three structural isomers?

(A)3 n
(B)4 n
(C)5 nCorrect
(D)6 n

Answer: (C)

Solution

Count the chain isomers of the lower alkanes: has 1 structure, has 2 (butane and 2-methylpropane), has 3 (n-pentane, 2-methylbutane and 2,2-dimethylpropane), and has 5. The alkane with exactly three

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Question ID VK-097303