1.

Which of the followinghydrocarbons is obtained whien 1, 1-ddibromopropane is treated with sodium in ether solution?

Answer»

Propene
Propane
Propyne
Hex-3-ene

Solution :`2CH_(3)CH_(2)-underst(Br)underset(|)(CH)-Br underset("ether")overset("Na)to CH_(3)CH_(2)CH=CHCH_(2)CH_(3)`
It is an extension of the WURTZ synthesis. Use of Na tends to PRODUCE LENGTHENING of the carbon chain.


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