Consider the reaction
CH₂=CH-CH₂ + Br₂ → Z
Z would be represented by
A - VCE - SSCE Chemistry - Question 6 - 2003 - Paper 1
Question 6
Consider the reaction
CH₂=CH-CH₂ + Br₂ → Z
Z would be represented by
A. CH₃CH₂CHBrCH₃
B. CH₃BrCH₂CH₃
C. CH₃CHBrCH₂CH₂Br
D. CH₃BrCH₂CHBr
Worked Solution & Example Answer:Consider the reaction
CH₂=CH-CH₂ + Br₂ → Z
Z would be represented by
A - VCE - SSCE Chemistry - Question 6 - 2003 - Paper 1
Step 1
Identify the reaction and products
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Answer
In this reaction, an alkene (propene) reacts with bromine to form a dibromide compound. The addition of Br₂ to the double bond results in the formation of saturated products.
Step 2
Analyze the addition of Br₂ to the alkene
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Answer
The alkene double bond will open up, allowing the bromine atoms to add across the double bond. The result will be a molecule containing two bromine atoms within its structure.
Step 3
Determine the correct representation of Z
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Answer
Looking at the options provided, the one that accurately reflects the addition of bromine to both carbon atoms of the original double bond is option A: CH₃CH₂CHBrCH₃. This structure includes a bromine atom added to one of the carbons originally involved in the double bond.
