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Chemistry 1995 JAMB Past Questions

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6
Two cylinders A and B each contains 30 cm3 of
oxygen and nitrogen respectively at the same temperature and pressure. If there are 5.0 moles of nitrogen, then the mass of oxygen is?
  • A. 3.2 g
  • B. 6.4 g
  • C. 80.0 g
  • D. 160.0 g
View Answer & Discuss (15) JAMB 1995
7

A liquid begins to boil when?

  • A. its vapour pressure is equal to the vapour pressure of its solid at the given temperature
  • B. molecules start escaping from its surface
  • C. its vapour pressure equals the atmosphere pressure
  • D. its volume is sightly increased
View Answer & Discuss (2) JAMB 1995
8

A particle that contains 8 proton, 9 neutrons and 7 electrons could be written as?

  • A. O
  • B. O+
  • C. N
  • D. O-
View Answer & Discuss (25) JAMB 1995
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9
In the oil drop experiment, Millikan determined the?
  • A. charge to mass ratio of the electron
  • B. mass of the electron
  • C. charge of the electron
  • D. mass of the proton
View Answer & Discuss (1) JAMB 1995
10
The ability of ionic solids is generally due to the?
  • A. negative electron affinity of most atoms
  • B. crystal lattice forces
  • C. electron pair sharing
  • D. positive ionization potentials
View Answer & Discuss (5) JAMB 1995
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