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Chemistry JAMB 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
896
Which of the following processes leads to increase in entropy?
  • A. Mixing a sample of NaCl and sand
  • B. Condensation of water vapour
  • C. Boiling a sample of water
  • D. Cooling a saturated solution
View Answer & Discuss (1) JAMB 1995
897
Which of the following equilibria is shifted to the right as a result of an increase in pressure?
  • A. H2(g) + I2(g) 2HI(g)
  • B. 2NO2(g) N2O4(g)
  • C. PCl5(s) PCl3(s) + Cl2(g)
  • D. 2O3(g) 3O2(g)
View Answer & Discuss (6) JAMB 1995
898

In the industrial production of hydrogen from natural gas, carbon (IV) oxide produced along with the hydrogen is removed by?

  • A. washing with water under pressure
  • B. passing the mixture into lime water
  • C. using ammoniacal copper (l) chloride
  • D. drying over phoshorus (V) oxide
View Answer & Discuss (9) JAMB 1995
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899
Sulphur exists in six forms in the solid state. This property is known as?
  • A. isomerism
  • B. allotropy
  • C. isotopy
  • D. isomorphism
View Answer & Discuss (1) JAMB 1995
900

A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is?

  • A. sulphur (ii) oxide
  • B. hydrogen sulphide
  • C. sulphide (lV) oxide
  • D. hydrogen chloride
View Answer & Discuss (26) JAMB 1993
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