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

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Prepare for the IGCSE Organic Chemistry Exam. Study with flashcards and multiple choice questions, each question has hints and explanations to ensure you understand the core concepts. Get ready for your test with confidence!

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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