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Chemistry JAMB Past Questions

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346

Sugar is separated from its impurities by

  • A. precipitation
  • B. crystallization
  • C. distillation
  • D. evaporation
View Answer & Discuss JAMB 2005
347

The component of an atom that contributes least to its mass is the

  • A. proton
  • B. nucleus
  • C. neutron
  • D. electron
View Answer & Discuss (3) JAMB 2005
348

An element will readily form an electrovalent compound if its electron configuration is

  • A. 2, 8, 1
  • B. 2, 8, 4
  • C. 2, 8, 8
  • D. 2, 8, 5
View Answer & Discuss (5) JAMB 2005
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349

A heterogenous mixture can be defined as any mixture

  • A. of a solute and a solvent
  • B. whose composition is uniform
  • C. whose composition is not uniform
  • D. formed by solids and liquids
View Answer & Discuss (2) JAMB 2005
350

The pressure of 100cm\(^3\) of oxygen at 35\(^0\)C is 750mmHg. What will be the volume of gas if the pressure is reduced to 100mmHg without changing the temperature?

  • A. 650 cm3
  • B. 850 cm3
  • C. 580 cm3
  • D. 750 cm3
View Answer & Discuss (9) JAMB 2005
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