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JEE Main levelNumerical answerDifficulty 2 of 3o2250

The alkane shown is monochlorinated with and light. How many different monochlorination products (constitutional isomers only, ignore stereoisomers) are possible? Give your answer as an integer.

Numerical answer type, tolerance 0.5.

Answer: 4

The alkane is 3-methylpentane. The two ethyl groups are equivalent, the two groups are equivalent, the methyl on C-3 is separate and the C-3 CH is a fourth set. Four sets of equivalent hydrogens give four constitutional products.
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