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196

Three drops of a 1.0 mol dm-3 solution of NaOH are added to 20 cm3 of a solution of pH 8.4. The pH of the resulting solution will?

  • A. Close to that of pure water
  • B. Unaltered
  • C. Greater than 8.4
  • D. Less than 8.4
View Answer & Discuss (24) JAMB 2002
197

25cm\(^3\) of a 0.2 mol dm\(^3\) solution of Na\(_2\)CO\(_3\) requires 20 cm\(^3\) of a solution of HCl for neutralization. The concentration of the HCl solution is

  • A. 0.5 mol dm3
  • B. 0.6 mol dm3
  • C. 0.2 mol dm3
  • D. 0.4 mol dm3
View Answer & Discuss (6) JAMB 2002
198

The substance least considered as a source of environmental pollution is

  • A. Lead compounds
  • B. Organophosphorous compounds
  • C. Silicate minerals
  • D. Uranium
View Answer & Discuss (18) JAMB 2002
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
199

The furring of kettles is caused by the presence in the water of?

  • A. Calcium tetraoxosulphate (VI)
  • B. Calcium hydrogentrioxocarbonate (IV)
  • C. Calcium hydroxide
  • D. Calcium trioxocarbonate (IV)
View Answer & Discuss (32) JAMB 2002
200

The property which makes alcohol soluble in water is the

  • A. boiling point
  • B. hydrogen bonding
  • C. ionic character
  • D. covalent nature
View Answer & Discuss (7) JAMB 2002
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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