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6. Which of the following compounds does NOT exhibit E-Z isomerism?

  • CH2=CHCBr=CHF
  • CH(NH2)=CCl2
  • CF(COOH)=CHCH3
  • CH(COOCH3)=CHI

7. Long chain alkanes can be cracked down thermally into smaller, more useful ones. Which of the following shows the correct equation for the thermal cracking of octane?

  • C8H18 -> C2H4 + C3H6 + C3H8
  • C8H18 -> 2C3H8 + C2H4
  • C8H20 -> C2H4 + C3H6 + C3H8
  • C8H18 -> C2H6 + C3H6 + C3H8

8. Give the condensed structural formula for 1,2-dibromobutan-1-ol.

  • CHBrCHBrOHCH2CH3
  • CHBr2OHCHCH2CH3
  • CHBrOHCHBrCH2CH3
  • CH3CH2BrCHCHBrOH

9. Name this compound: CH2Cl=C(CH3)CH2CH3.

  • 1-chloro-2-ethylpropene
  • 1-chloro-2-methylbut-1-ene
  • 1-chloro-2-methylprop-1-ene
  • 1-chloro-2-methylbut-2-ene

10. Which of the following statements about catalytic converters is true?

  • Carbon compounds like C4H10 are oxidised while nitrogen compounds like NO2 are reduced.
  • Harmful gases are converted into harmless ones.
  • Carbon compounds like C4H10 are oxidised while nitrogen compounds like NO3 are reduced.
  • Carbon compounds like C4H10 are reduced while nitrogen compounds like NO2 are oxidised.

11. Define the term Secondary Halogenoalkane.

  • A halogenoalkane which has two carbon atoms directly bonded to the halogen atom that is bonded to the carbon.
  • A halogenoalkane which has three carbon atoms directly bonded to the carbon atom that is bonded to the halogen.
  • A halogenoalkane which has two carbon atoms directly bonded to the carbon atom that is bonded to the halogen.
  • A halogenoalkane which has two carbon atoms directly bonded to the carbon molecule that is bonded to the halogen.

12. Define the term Structural Isomers.

  • Molecules which have the same general formula but a different structural formula.
  • Molecules which have the same molecular formula but a different skeletal formula.
  • Molecules which have the same molecular formula but a different structural formula.
  • Molecules which have the same molecular formula but a different arrangement in space.

13. Why would a pear shaped flask be used in reflux?

  • Condensed droplets run back into the liquid.
  • Ensures smooth boiling.
  • Holds more liquid.
  • Compact

14. Which equation best shows the reaction between sodium hydroxide and 2-chlorobutane?

  • CH3CH2ClCH3CH3(l) + NaOH(alc) -> CH2CHCH2CH3(g) + NaCl(alc) + H2O(l)
  • CH3CH2ClCH3CH3(l) + NaOH(alc) -> CH2=CHCH2CH3(g) + NaCl(alc) + H2O(l) +
  • CH3CH2ClCH3CH3(l) + NaOH(aq) -> CH2=CHCH3CH3(g) + NaCl(aq) + H2O(l)
  • CH3CH2ClCH3CH3(l) + NaOH(aq) -> CH2CHCH2CH3(g) + NaCl(aq) + H2O(l)

15. Which of the following shows the correct conditions for the hydration of ethene?

  • Dilute H3PO4, 300 C, 100 kPa
  • Concentrated H3PO4, 300 K, 60-70 atm
  • Concentrated H3PO4, 300 C, 60-70 atm
  • Dilute H3PO4, 300 C, 60-70 atm

16. Which of the following will be the major product for the reaction of Br2 and But-1-ene?

  • 2-bromobutane
  • 2-bromobutene
  • 1-bromobutane
  • 1-bromobutene

17. Which two species are indistinguishable using only IR spectroscopy?

  • Ethane and Butane
  • The-OH in alcohols and the -OH in carboxylic acids.
  • Esters and Carboxylic Acics
  • Ethane and Ethene

18. Which compound has the lowest boiling point?

  • 1-fluorobutane
  • 1-bromopropane
  • 1-iodopropane
  • 2,2-dichloropropane

19. In the presence of UV light, methane reacts with excess chlorine. Which compound is formed?

  • CH4Cl
  • CCl4
  • CH3Cl
  • CH2Cl2

20. 2-methylpropan-2-ol is refluxed with acidified potassium dichromate. Nothing is observed. Explain why.

  • Not enough acidified potassium dichromate was added.
  • The alcohol is a tertiary alcohol and so there aren't enough hydrogen atoms to create water.
  • The alcohol is a tertiary alcohol and so it is unreactive.
  • The product is colourless and odorless.