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Chemistry 1993 WAEC 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
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16
The following gases decolorize bromine water except
  • A. C2H6
  • B. C2H4
  • C. C2H2
  • D. C3H4
  • E. C3H6
View Answer & Discuss (4) WAEC 1993
17

What volume of distilled water should be added to 400cm3 of 2.0 mole dm-3 \(H_{2}SO_{4}\) to obtain 0.20 mole dm-3 of solution>

  • A. 600cm-3
  • B. 800cm-3
  • C. 1,000cm-3
  • D. 3,600cm-3
  • E. 4,000cm-3
View Answer & Discuss (6) WAEC 1993
18
Which of the following indicates the correct increasing order of oxidizing power of the halogens?
  • A. F < CI < Br < l
  • B. l < Br < CI < F
  • C. I < CI < Br < F
  • D. Br < I < CI < F
  • E. CI < F < I < Br
View Answer & Discuss WAEC 1993
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19
Which of the following substances is a peroxide?
  • A. Na2O2
  • B. CuO
  • C. PbO4
  • D. Fe2O
  • E. AI2O
View Answer & Discuss WAEC 1993
20
The component of air that removed when air is bubbled into alkaline pyrogallol solution is
  • A. carbon(lV) oxide
  • B. oxgyen
  • C. water vapour
  • D. nitrogen
  • E. helium
View Answer & Discuss WAEC 1993
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WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208