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Chemistry 1984 JAMB Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
26
Which of the following statements is INCORRECT?
  • A. Fractional distillation of crude petroleum will give the folloing hydrocarbon fuels in order of increasing boiling point
  • B. Butane < petrol < kerosene of polythene.
  • C. Both but-1-ene and but-1-yne will decolorize bromine readily
  • D. but-2-ene will react with chlorine to form 2,3-dichlorobutane
  • E. calcuim carbide will react with water to form any alkyne
View Answer & Discuss (17) JAMB 1984
27
Which of the following statements is NOT correct about all four of the acids: HBr, HNO3, H 2CO3 and H2SO4? They
  • A. dissolve marble to liberate CO
  • B. have a PH less than 7
  • C. Turn blue litmus red
  • D. neutralize alkalis to form salt
  • E. react with magnesium to liberate hydrogen
View Answer & Discuss (10) JAMB 1984
28

If the cost of electricity required to deposit 1 g of magnesium is N5.00, how much would it cost to deposit 10g of aluminium?

  • A. N 10.00
  • B. N27.00
  • C. N44.44
  • D. N66.67
  • E. N33.33
View Answer & Discuss (11) JAMB 1984
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29
Nitrogen can best be obtained from a mixture over oxygen and nitrogen by passing the mixture over
  • A. potassium hydroxide
  • B. heated gold
  • C. heated magnesium
  • D. heated phosphorus
  • E. calcium chloride
View Answer & Discuss (10) JAMB 1984
30
Water is said to be 'hard' if it
  • A. easily forms ice
  • B. has to be warmed before sodium chloride dissolves in it
  • C. froms an insoluble scum with soap
  • D. contains nitrates
  • E. contains sodium ions
View Answer & Discuss JAMB 1984
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