AQA Chemistry A-Level - 3.3.4 Alkenes Exam Study Verified Accurate Answers.
8 views 0 purchase
Course
MCMURRY
Institution
MCMURRY
What are alkenes? - correct answer Unsaturated hydrocarbons, due to C=C double bond
What is the general formula for an alkene? - correct answer CnH2n
Why is there no rotation around the C=C double bond? - correct answer...
What are alkenes? - correct answer Unsaturated hydrocarbons, due to C=C double
bond
What is the general formula for an alkene? - correct answer CnH2n
Why is there no rotation around the C=C double bond? - correct answer Due to the
pi orbital above and below the bond, holding it in place.
Are they more or less reactive than alkanes? - correct answer More reactive, due to
the high electron density at the C=C double bond and because the pi bond is slightly easier to break.
What is the test for alkenes? - correct answer Bromine water; orange to colourless
Why are alkenes susceptible to attacks by electrophiles? - correct answer Due to
the high electron density in the double bond
What is a carbocation? - correct answer An organic ion containing a positively
charged carbon atom
What forms the major product of an electrophilic addition? - correct answer The
most stable carbocation
Reaction mechanism of an alkene to form a halogenoalkane - correct answer
Mechanism - Electrophilic addition
Reagents - HBr
Conditions - 20°C
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller RealGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
