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471

In the course of purifying water for town supply the water is passed through large settlings tanks, containing sodium aluminate (III) to remove?

  • A. large particles
  • B. germs
  • C. fine particles
  • D. odour
View Answer & Discuss (16) JAMB 2008
472

When a few drops of water is added to a blue anhydrous cobalt (II) chloride, the colour changes to

  • A. white
  • B. pink
  • C. red
  • D. blue
View Answer & Discuss (5) JAMB 2008
473

The vulcanizer's solution is prepared by dissolving rubber in

  • A. ethanol
  • B. kerosine
  • C. benzene
  • D. petrol
View Answer & Discuss (5) JAMB 2008
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474

117.0g of sodium chloride was dissolved in 1.0dm3 of distilled water at 25°C. Determine the solubility in mol dm-3 of sodium chloride at that temperature
[Na = 23, Cl = 35.5]

  • A. 1.0
  • B. 2.0
  • C. 3.0
  • D. 4.0
View Answer & Discuss (9) JAMB 2008
475

The uncovered raw food that is sold along major roads is likely to contain some amounts of

  • A. Pb
  • B. Cu
  • C. Ag
  • D. Na
View Answer & Discuss (4) JAMB 2008
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts