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29 The table describes four reactions of propene - CIE - A-Level Chemistry - Question 29 - 2021 - Paper 1
Question 29
29 The table describes four reactions of propene. Which row is correct? | reagent used | name of main organic product | |------------... show full transcript
Worked Solution & Example Answer:29 The table describes four reactions of propene - CIE - A-Level Chemistry - Question 29 - 2021 - Paper 1
Step 1
Which row is correct?
Answer
To answer this question, we need to analyze each row in the table regarding the reactions of propene.
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Row A: Aqueous Bromine Aqueous bromine adds across the double bond of propene, resulting in the formation of 2-bromopropane. This row is incorrect because the product's name doesn't match the typical outcome of the reaction.
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Row B: Cold Acidified Aqueous Potassium Manganate(VII) This reagent oxidizes propene to yield propane-1,2-diol, not propane-1,3-diol. Therefore, this row is also incorrect.
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Row C: Hydrogen Chloride When hydrogen chloride reacts with propene, it follows Markovnikov's rule, resulting in 2-chloropropane. This matches appropriately and makes this row correct.
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Row D: Steam Adding steam (water) to propene gives propan-1-ol through hydration, not the indicated product.
After analyzing all the reactions, we conclude that the correct answer is Row C.