Table 1 shows information about four different compounds, W, X, Y, and Z.
The compounds, in no particular order, are:
Table 1
| Compound | Boiling point in ∘C^{\circ}\text{C}∘C | Reaction with limewater | Reaction with bromine water | Products of complete combustion |
|---|---|---|---|---|
| W | −78-78−78 | mixture turns cloudy | no reaction | does not burn |
| X | −104-104−104 | no reaction | mixture turns colourless | carbon dioxide and water |
| Y | −89-89−89 | no reaction | no reaction | carbon dioxide and water |
| Z | 363636 | no reaction | no reaction | carbon dioxide and water |
Use all of the information in Table 1 to identify which of the four compounds, W, X, Y, and Z, is:
You must give scientific reasons for your choices.
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.
