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6. What type of reaction is benzene to phenylketones?

  • Oxidation
  • Nitration
  • Acylation
  • Reduction

7. Which of these is NOT a method of reducing a nitrile?

  • Sn catalyst, with conc hydrochloric acid followed by sodium hydroxide
  • Lithium aluminium hydride in dry ether, followed by dilute acid
  • Nickel catalyst, hydrogen gas

8. What do anti bumping granules do?

  • Prevent formation of large bubbles
  • Prevent temperature from getting too high
  • Prevent build up of pressure
  • Remove impurities from reaction mixture

9. Which of these is NOT a polyamide?

  • Terylene
  • Kevlar
  • Nylon 6,6

10. Conditions for reverse reaction: ester and water to carboxylic acid and alcohol?

  • Sodium hydroxide, warm
  • Reflux
  • Conc sulfuric acid
  • Heat, suluric acid catalyst

11. How can you convert aldehydes and ketones back to alcohols?

  • Reduce them with sodium tetrahydridaborate(III) dissolved in water and methanol
  • Reduce them with lithium aluminium hydride dissovlved in aqueous sodium hydroxide solution
  • Oxidise them with acidified potassium dichromate
  • Oxidise them with lithium aluminium hydride, dissolve in aqueous sodium hydroxide solution

12. Which chemical turns amino acids purple?

  • Ninhydrin
  • Phenylphthalein
  • Sodium tertahydridaborate(III)
  • Tetramethylamine

13. Which of these reactions is NOT carried out under reflux?

  • Electrophillic addition: alkene to alcohol
  • Nucleophilic substitution, halogenoalkanes to alcohols
  • Ester to carboxylic acid
  • Aldehydes oxidised to carboxylic acids
  • Nucleophilic substitution, halogenoalkanes to amines
  • Nucleophilic substitution, halogenoalkanes to nitriles

14. What is potassium cyanide?

  • Corrosive
  • An irritant
  • Toxic gas
  • Very powerful oxidising agent

15. In a separating funnel which layer is usually on top?

  • Emulsion
  • Aqueous
  • Organic
  • Inorganic

16. Making Tollens reagent: what is there to observe after first 2 solutions have been added?

  • White ppt
  • Brown ppt
  • Red ppt
  • Emulsion

17. Dehydration of alcohols is an example of?

  • Nucleophilic substitution
  • Nucleophilic elimination
  • Elimination reaction
  • Electrophilic addition

18. A polar solute will have a lower Rf value is the stationary phase is...?

  • More polar
  • Less polar

19. Which of these is NOT a condition for fermentation of glucose?

  • Ethanolic
  • Anaerobic conditions
  • Yeast enzymes
  • 30-40°C

20. Making Tollens reagent: which order are 1. Sodium hydroxide, 2. Ammonia and 3. Silver nitrate added in?

  • 2, 3, 1
  • 3, 2, 1
  • 1, 3, 2
  • 3,1,2
  • 2,1,3