JEE Main Chemistry question
An organic compound 'X' (), on Wurtz reaction, gives a hydrocarbon which, on monochlorination, gives only one chloroderivative. The number of methyl groups in 'X' is .
Answer: 3
Solution
For the Wurtz coupling product (an 8-carbon hydrocarbon) to give only one monochloro derivative, it must have only one type of equivalent hydrogen — this is satisfied by 2,2,3,3-tetramethylbutane, , whose twelve hydrogens (four
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