A student is given two unlabeled bottles containing hexane and hex-1-ene. To distinguish between them, they add orange-brown bromine water to a sample of each liquid at room temperature. The sample containing hex-1-ene immediately decolourises the bromine water.
What type of reaction occurs in this test tube, and what is the molecular formula of the organic product formed?
Addition reaction, forming C6H12Br2C_6H_{12}Br_2C6H12Br2
Substitution reaction, forming C6H11BrC_6H_{11}BrC6H11Br
Addition reaction, forming C6H13BrC_6H_{13}BrC6H13Br
Substitution reaction, forming C6H12Br2C_6H_{12}Br_2C6H12Br2
Practise Edexcel GCSE Chemistry Hydrocarbons with exam-style questions for Foundation and Higher tier. 34 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
