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6. What is the name of the salt formed when phenol reacts with sodium hydroxide

  • Sodium-phenol
  • Sodium phenoxide
  • Phenol benzoate
  • Sodium benzoate

7. What would you see if bromine is added to cyclohexene?

  • White precipitate
  • Effervesence
  • Decolourises bromine
  • Orange precipitate

8. What does H- ion act as in a nucleophilic addition with aldehydes and ketones?

  • Oxidising agent
  • Electrophile
  • Nucleophile
  • Catalyst

9. Why does bromine act more readily with cyclohexene than with benzene

  • Bromine cannot react with either
  • Localised electrons can polarise bromine molecules
  • Bromine accepts delocalised electrons
  • Halogen carrier

10. What are the reagents needed for nitration of benzene

  • conc H2SO4 and conc HNO3
  • Tin and conc HCl
  • NaNO2 and HCl
  • NaBH4

11. Which is not a piece of evidence that disproves Kekule's structure of Benzene?

  • Low reactivity
  • High melting point
  • The carbon - carbon bond lengths
  • Enthalpy change of hydrogenation

12. What is observed when Tollens reacts with aldehydes?

  • Orange solution
  • Silver mirror
  • Fizzing
  • White precipitate

13. What reactions does Benzene take part in?

  • Nucleophilic substitution
  • Electrophilic substitution
  • Electrophilic addition
  • Nucleophilic addition