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Butene reacts with steam to produce butanol - Edexcel - GCSE Chemistry - Question 5 - 2016 - Paper 1
Question 5
Butene reacts with steam to produce butanol. C4H8 + H2O → C4H10O (i) Calculate the maximum mass of butanol, C4H10O, that can be produced when 1.4 kg of butene, C4H... show full transcript
Worked Solution & Example Answer:Butene reacts with steam to produce butanol - Edexcel - GCSE Chemistry - Question 5 - 2016 - Paper 1
Step 1
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Using the results, comment on the structures of the hydrocarbons X, Y and Z.
Answer
From the bromine water test, we can deduce the following about the hydrocarbons:
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X: Since the orange mixture becomes colourless, hydrocarbon X must contain a double bond (alkene), allowing it to react with bromine and decolorize it.
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Y: Similarly, hydrocarbon Y also turns the bromine water colourless, indicating that it is likely another unsaturated compound, possibly an alkene as well.
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Z: The mixture remains orange, meaning that hydrocarbon Z does not react with bromine. Thus, Z is likely a saturated hydrocarbon, such as an alkane, which does not have double bonds and therefore does not decolorize bromine water.