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Chemistry 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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2151

What is the oxidation number of nitrogen in Al(NO\(_3\))\(_3\)?

  • A. + 1
  • B. + 3
  • C. + 5
  • D. + 6
View Answer & Discuss (9) WAEC 2001
2152

What is oxidized in the reaction represented by the following equation? 3CU + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O

  • A. Oxygen
  • B. Hydrogen
  • C. Nitrogen
  • D. Copper
View Answer & Discuss (3) WAEC 2001
2153

Which of the following substances decomposes when an electric current is passed through it?

  • A. Glucose solution
  • B. Zinc rod
  • C. Hydrochloric acid
  • D. Tetrachloromethane
View Answer & Discuss WAEC 2001
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2154

A concentrated solution containing H+, Cu2+,OH- and CI- was electrolyzed using platinum electrodes which of the ions will be discharged at the cathode?

  • A. H+
  • B. Cu2+
  • C. OH-
  • D. CI-
View Answer & Discuss WAEC 2001
2155

Given that the order of reactivity of four metals is P>Q>R>S, which of the following reactions is feasible?

  • A. S + P+ → P + S +
  • B. Q + S+ → S + Q+
  • C. R + P+ → P + R+
  • D. S + Q+ → Q + S+
View Answer & Discuss (11) WAEC 2001
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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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