Which compound can form when bromine water reacts with propene?
(A) 1-bromopropane
(B) 2-bromopropane
(C) 1,1-dibromopropane
(D) 1,2-dibromopropane - HSC - SSCE Chemistry - Question 11 - 2011 - Paper 1
Question 11
Which compound can form when bromine water reacts with propene?
(A) 1-bromopropane
(B) 2-bromopropane
(C) 1,1-dibromopropane
(D) 1,2-dibromopropane
Worked Solution & Example Answer:Which compound can form when bromine water reacts with propene?
(A) 1-bromopropane
(B) 2-bromopropane
(C) 1,1-dibromopropane
(D) 1,2-dibromopropane - HSC - SSCE Chemistry - Question 11 - 2011 - Paper 1
Step 1
Identify the reaction between bromine water and propene
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Answer
When bromine water is added to propene, an addition reaction occurs. Propene, as an alkene, reacts with bromine to form bromoalkanes.
Step 2
Determine the possible product structures
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Answer
The double bond in propene allows for bromine to add across it. This can lead to two potential products: 1-bromopropane and 2-bromopropane. The reaction can also lead to dibrominated products depending on the stereochemistry.
Step 3
Select the correct option from the given choices
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Answer
The major product from this reaction is 1,2-dibromopropane, which is formed through the addition of bromine to the double bond. Therefore, the correct answer is (D) 1,2-dibromopropane.
