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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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1916
What mass of copper will be deposited by the liberation of Cu2+ when 0.1F of electricity flows through an aqueous solution of a copper (ll) salt? [Cu = 64]
  • A. 64g
  • B. 32g
  • C. 12.8g
  • D. 6.4g
  • E. 3.2g
View Answer & Discuss (3) WAEC 1995
1917
Which of the following is not correct of the reaction represented by the equation below? 2C(s) + O2(g) → 2CO(g); ∆H = - xKJ
  • A. there is an increase in entropy ;
  • B. There is anincrease in gaseous volume
  • C. Carbon (lV) oxide is produced
  • D. The oxidation number of carbon increases from 0 to +2
  • E. The reaction is exothermic
View Answer & Discuss (4) WAEC 1995
1918
H3O+(aq) + OH-(aq) → 2H2O(l). The heat change accompanying the process represented by the equation above is the heat of
  • A. neutralization
  • B. formation
  • C. solution
  • D. dilution
  • E. hydration
View Answer & Discuss (1) WAEC 1995
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1919
The following statements about graphite are correct except that it
  • A. is used as a lubricant
  • B. has a network structure
  • C. contains mobile free electrons
  • D. is good conductor
  • E. is an allotrope of carbon
View Answer & Discuss (1) WAEC 1995
1920
Which of the following is hydrocarbons is unsaturated?
  • A. Ethane
  • B. Benzene
  • C. Propane
  • D. 2 - methylbutane
  • E. 2,2,4-trimethylpentane
View Answer & Discuss (1) WAEC 1995
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