Question 1
1 markWhen propene reacts with bromine water, \(\text{Br}_2(\text{aq})\), the organic product formed is:
Pearson Edexcel International AS Level · Chemistry (XCH11)
Alkenes: Practice Questions
5 multiple-choice questions marked as you go, and 2 written questions with worked solutions. All on Alkenes.
7 questions12 marksFree, no account
Question 2
1 markWhich of the following compounds can exist as a pair of geometric (E-Z) isomers?
Question 3
1 markDuring the electrophilic addition of hydrogen bromide to propene, which species is formed as the major intermediate that leads to the major product?
Question 4
1 markWhat is the catalyst used in the industrial hydrogenation of ethene to form ethane?
Question 5
1 markIn the electrophilic addition of hydrogen bromide to but-1-ene, which carbocation intermediate is the most stable?
Question 6
2 marksState the IUPAC name of the organic product formed when ethene reacts with steam in the presence of an acid catalyst.
Write your answer out first, then check it against the worked solution.
Question 7
5 marksAlkanes and alkenes are important homologous series in organic chemistry.
(a) Define the term homologous series.
(b) Draw the skeletal formula for 2-methylbut-2-ene.
(c) When 2-methylbut-2-ene reacts with hydrogen bromide, two possible products are formed. Name the major product and explain why it is formed in greater yield than the minor product with reference to carbocation stability.
Write your answer out first, then check it against the worked solution.
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