Snapquiz - Uses of Alkanes and Alkenes

This is the Snapquiz on Uses of Alkanes and Alkenes. Click here or use the embedded video if you haven't watched the lesson yet.

Question 1. Which compound or compounds are formed when bromine is added to butane?

Butene and bromine.
Butane and bromine (no reaction).

Question 2. What does 'unsaturated' mean when referring to a hydrocarbon?

The molecule has room for more atoms.
The molecule is safe to eat.
The molecule cannot be polymerised.
The molecule isn't long enough.

Question 3. Which key feature gives alkenes different properties to alkanes?

A carbon-carbon double bond.
An oxygen atom.
A greater number of hydrogen atoms.
A different number of carbon atoms.

Question 4. What is the name of the process which divides long alkanes into smaller alkanes and alkenes?


Question 5. What would we observe if we added bromine water to an alkane?

The bromine water would go from colourless to brown.
The bromine water would remain brown.
The bromine water would go from brown to colourless.
The bromine water would remain colourless.

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