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Chemistry JAMB Past Questions

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756

The nucleus of the isotope tritium, contains?

  • A. two neutrons with no protons
  • B. one neutron and one protons
  • C. two neutrons and one proton
  • D. two neutrons, one proton and one electron
View Answer & Discuss (8) JAMB 1992
757

How many lone pairs of electron are there on the central atom of the H2O molecules?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
View Answer & Discuss (17) JAMB 1992
758
147N + X → 178O + 11 H. In the above reaction, X is a?
  • A. neutron
  • B. helium atom
  • C. litgium atom
  • D. deuterium atom
View Answer & Discuss (6) JAMB 1992
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759
The pollutants that are likely to be present in an industrial environment are?
  • A. H2S,SO2 and oxides of nitrogen
  • B. NH3, HCI and CO
  • C. CO2, NH3 and H2S
  • D. dust, NO and CI2
View Answer & Discuss (1) JAMB 1992
760
Four elements P,Q,R and S have 1,2,3, and 7 electrons in their outermost shells respectively. The element which is unlikely to be a metal is?
  • A. P
  • B. Q
  • C. R
  • D. S
View Answer & Discuss (4) JAMB 1992
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