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Chemistry JAMB Past Questions

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451

Certain useful waxes are composed mainly of

  • A. amino acids
  • B. glycerols
  • C. alkanols
  • D. alkanoates
View Answer & Discuss (18) JAMB 2007
452

The IUPAC nomenclature of compound CH\(_3\)CH\(_2\)COOCH\(_2\)CH\(_3\) is

  • A. propyl ethanoate
  • B. ethyl butanoate
  • C. ethyl propanoate
  • D. methyl butanoate
View Answer & Discuss (1) JAMB 2007
453

When temporary hard water is boiled for sometime in a kettle, the inner surface of the kettle becomes coated with a deposit of

  • A. calcium tetraoxosulphate(VI)
  • B. calcium trioxocarbonate (IV)
  • C. calcium hydrogentrioxocarbonate (IV)
  • D. aluminium trioxocarbonate (IV)
View Answer & Discuss (9) JAMB 2007
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454

A supersaturated solution is said to contain

  • A. more solute than it can dissolve at that temperature in the presence of undissolved solute
  • B. as much solute as it can dissolve at that temperature in the presence of undissolved solute
  • C. as much solute as it can dissolve at that temperature
  • D. more solute than it can dissolve at that temperature
View Answer & Discuss (6) JAMB 2007
455

The presence of nitrogen in air is to slow down

  • A. respiration and combustion
  • B. combustion and corrosion
  • C. corrosion and respiration
  • D. respiration and transpiration
View Answer & Discuss (4) JAMB 2007
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