What product forms when bromine water reacts with an alkene in this test?

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Study for the IGCSE Organic Chemistry Test. Engage with flashcards and multiple-choice questions, complete with hints and detailed explanations. Prepare effectively to excel in your exam!

Multiple Choice

What product forms when bromine water reacts with an alkene in this test?

Explanation:
When bromine water meets an alkene, the double bond acts like a trap for bromine. Electrophilic bromine adds across the C=C, one bromine attaching to each carbon, so you get a vicinal dibromide. The bromine water loses its orange color because Br2 is consumed in forming this new C–Br–C–Br linkage. So the product is a dibrominated alkane. This isn’t a monobrominated alkane, a dibrominated aromatic ring, or an alcohol under these conditions.

When bromine water meets an alkene, the double bond acts like a trap for bromine. Electrophilic bromine adds across the C=C, one bromine attaching to each carbon, so you get a vicinal dibromide. The bromine water loses its orange color because Br2 is consumed in forming this new C–Br–C–Br linkage. So the product is a dibrominated alkane. This isn’t a monobrominated alkane, a dibrominated aromatic ring, or an alcohol under these conditions.

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