Other questions in this quiz

2. Why does it make this colour change?

  • It is an addition reaction as alkenes are unsaturated and react
  • It is a substitution reaction as alkanes are saturated
  • It indicates the presence of an alkaline substance
  • It indicates the presence of acidity

3. What is combustion?

  • When fuels react with oxygen and burn to release useful heat energy
  • When fuels react with heat to form oxygen
  • An explosion which occurs when crude oil is heated
  • When a substance implodes in the air

4. What is an alkene?

  • An isomer of alkanes
  • When a hydrocarbon has one or more carbon-carbon covalent bonds
  • A saturated alkane
  • When an alkane is combusted

5. What is an isomer

  • A type of alkane which is unsaturated
  • The same molecular formula but different structures
  • Different physical properties but the same molecular formula
  • The same structure but a different molecular formula

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