A mixture of bromobenzene and bromoethane is treated with sodium in dry ether. Counting only products formed by carbon-carbon coupling (and ignoring elimination and reduction products), how many different organic products are obtained?

Answer: B

Wurtz-Fittig coupling of the two halides can join aryl-aryl, aryl-alkyl and alkyl-alkyl pairs: biphenyl, ethylbenzene and butane. That is three different products.

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