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NEET 2018 Chemistry question

ChemistryHydrocarbonsNEET 2018

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is

Answer: (4)

Solution

An alkane reacts with by substitution (in light). The Wurtz reaction doubles the carbon chain: . If A is : \xrightarrow{Br_2/hν}\xrightarrow{Na, dry ether}$

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Question ID VK-092256