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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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1501

Crude petroleum pollutant usually seen on some Nigerian creeks and waterways can be dispersed or removed by

  • A. heating the affected parts in order to boil off the petroleum
  • B. mechanically stirring to dissolve the petroleum in water
  • C. pouring organic solvents to dissolve the petroleum
  • D. spraying the water with detergents
  • E. cooling to freeze out the petroleum
View Answer & Discuss (14) JAMB 1983
1502
An element is electronegative if
  • A. it has a tendency to exist in the gaseous from
  • B. its ions dissolve readily in water
  • C. it has a tendency to lose electrons
  • D. it has a tendency to gain electrons
  • E. it readily froms covalent bonds
View Answer & Discuss (2) JAMB 1983
1503
Solutions X, Y, and Z have PH values 3.0. 5. 0 and 9. 0 respectively. Which of the following statements is correct?
  • A. All the solutions are acidic
  • B. All the solutions are basic
  • C. Y and Z are more acidic than water
  • D. Y is more acidic than X
  • E. Z is the least acidic
View Answer & Discuss (8) JAMB 1983
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1504
In the reactions

(I) H2 (g) + 1/2O2(g) → H2O(l); ∆H = -286 KJ

(II) C(s) + O2g) → CO2 (g); ∆H = -406 KJ the equations imply that
  • A. more heat is absorbed in (l)
  • B. more heat is absorbed in (ll)
  • C. less heat is evolved in (l)
  • D. reaction (ll) proceeds faster than (l)
  • E. reaction (l) proceeds faster than (ll)
View Answer & Discuss (18) JAMB 1983
1505
Which of these metals, Mg, Fe, Pb and Cu will dissolve in dilute HCI?
  • A. All the metals
  • B. Mg ,Fe and Cu
  • C. Mg, Fe and Pb
  • D. Mg and Fe only
  • E. Mg only
View Answer & Discuss (8) JAMB 1983
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