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Chemistry WAEC Past Questions

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596
What of the following pairs of acid and base will produce a solution with pH less than 7 at equivalence point?
  • A. HNO3 and NaOH
  • B. H2SO4 and KOH
  • C. HCI and Mg(OH) 2
  • D. HNO 3 and KOH
View Answer & Discuss (5) WAEC 2004
597
WHICH OF THE FOLLOWING SALTS IS READILY SOLUBLE IN WATER?
  • A. PbCI2
  • B. Pb(NO 3) 2
  • C. PbSO4
  • D. PbCO 3
View Answer & Discuss (1) WAEC 2004
598

Which of the following factors that affect the rate of chemical reactions can be explained in terms of the collision theory? l. concentration ll. pressure lll. temperature lV catalyst

  • A. l and ll only
  • B. l, ll and lll only
  • C. l and lll only
  • D. l, II, lll and IV only
View Answer & Discuss (11) WAEC 2004
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599
An orange drink concentrate is suspected to contain traces of poisonous green dye and a harmless dye having the same boiling point. Which of the following techniques is most suitable for isolating the dyes?
  • A. Fractional distillation
  • B. Paper chromatography
  • C. Coagulation
  • D. Recrystallization
View Answer & Discuss (1) WAEC 2004
600
If 60 cm3 of gas is heated from 27oC TO 50oC, what is the new volume of the gas at constant pressure?
  • A. 32.4cm 3
  • B. 55.7cm3
  • C. 64.6cm3
  • D. 111.1cm3
View Answer & Discuss (2) WAEC 2004
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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