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Chemistry 1988 JAMB Past Questions

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16
Suitable reagents for the laboratory preparation nitrogen are?
  • A. sodium dioxonitrate (III) and ammonium chloride
  • B. sodium dioxonitrate (V) and ammonium chloride
  • C. sodium chloride and ammonium chloride
  • D. sodium chloride and ammonium diozonitrate (III)
View Answer & Discuss (2) JAMB 1988
17
The thermal decomposition of copper (ll)trioxonitrate (V) yields copper (ll) oxide, oxygen and?
  • A. nitrogen (ll) oxide
  • B. nitrogen (l) oxide
  • C. nitrogen (lV) oxide
  • D. nitrogen
View Answer & Discuss (6) JAMB 1988
18
Chlorine is produced commmercially by?
  • A. electrolysis of dilute hydrochloric acid
  • B. electrolysis of brine
  • C. neutralization of hydrogen chloride
  • D. heating potassium trioxochlorate (V)
View Answer & Discuss (1) JAMB 1988
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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19
Aluminium is extracted commercially from its ore by?
  • A. heating aluminium oxide with coke in a furance
  • B. the electrolysis of fused aluminium oxide in cryolite
  • C. treating cryolite with sodium hydroxide solution under prressure
  • D. heating sodium aluminium silicate to a high temperature
View Answer & Discuss (2) JAMB 1988
20
Given the reactions (i) Fe(s) + X(NO3)2(aq) → Fe(NO3) + X(s) (ii) H2(g) + XO → X + H2O(s); X is likely to be?
  • A. copper
  • B. zinc
  • C. calcium
  • D. lead
View Answer & Discuss (2) JAMB 1988
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