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Chemistry 1987 JAMB Past Questions

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16
Local black soap is made by boiling palm oil with liquid extract of ash. The function of the ash is to provide the?
  • A. acid
  • B. ester of allanoic acid
  • C. alkali
  • D. alkanol
View Answer & Discuss (5) JAMB 1987
17

Synthetic rubber is made by polymerization of 

  • A. 2 methyl buta - 1, 3 - diene
  • B. 2 methyl buta - 1, 2 - diene
  • C. 2 methyl but -1-ene
  • D. 2 methyl but-2-ene
View Answer & Discuss (10) JAMB 1987
18
Complete oxidation of propan -1- ol gives?
  • A. propanal
  • B. propan-2-al
  • C. propan-1-one
  • D. propanoic acid
View Answer & Discuss (8) JAMB 1987
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19
When water drops are added to calcium carbide in a container and the gas is passed through a jet and lifted, the resultant flame is called an?
  • A. oxyethylene flame
  • B. oxyhydrocarbon flame
  • C. oxyacetylene flame
  • D. oxymethane flame
View Answer & Discuss (4) JAMB 1987
20

The greater the different in electronegativity between bonded atoms, the?

  • A. lower the polarity of the bond
  • B. higher the polarity of the bond
  • C. weaker the bond
  • D. higher the possibility of the substance formed being a molecule
View Answer & Discuss (12) JAMB 1987
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