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Chemistry JAMB Past Questions

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2151

Which of the following best represent solid gas mixture?

  • A. milk
  • B. kerosene
  • C. soil
  • D. smoke
View Answer & Discuss (1) JAMB 2022
2152

H\(^+\) + OH\(^-\) → H\(_2\)O

The equation above illustrates

  • A. precipitation
  • B. hydration
  • C. hydrolysis
  • D. neutralization
View Answer & Discuss (11) JAMB 2022
2153

Electrons enter into orbitals in order of increasing energy as exemplified by?

  • A. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^0\)
  • B. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^1\)2pz\(^1\)3s\(^0\)
  • C. 1S\(^2\)2S\(^2\)2PX\(^1\)2py\(^1\)2pz\(^1\)3s\(^1\)
  • D. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^1\)
View Answer & Discuss (19) JAMB 2022
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2154

Wrought iron is obtained by heating cast iron in a furnace with?

  • A. magnetite
  • B. haematite
  • C. carbon(ii)oxide
  • D. calcium trioxosilicate(iv)
View Answer & Discuss (8) JAMB 2022
2155

In the extraction of iron, hot air is introduced into the blast furnace through?

  • A. valves
  • B. open-hearths
  • C. arcs
  • D. tuyeres
View Answer & Discuss (1) JAMB 2022
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