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Chemistry 1987 JAMB Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
1
The reaction between sulphur (IV) oxide and oxygen is represented by the equilibrium reaction 2SO2(g) + O2(g) ↔ 2SO3(g), ∆H = -196 kJ. What factor would influence increased production of SO3(g)?
  • A. Addition of a suitable catalyst
  • B. Increase in the temperature of the reaction
  • C. Decrease in the temperature of the reaction
  • D. Decrease in the concentration of SO2(g)
View Answer & Discuss (4) JAMB 1987
2
Magnesium ribbon was allowed to burn inside a given gas P leaving a white solid residue Q. Addition of water to Q liberated a gas which produced dense white fumes with a drop of hydrochloric acid. The gas P was?
  • A. nitrogen
  • B. chlorine
  • C. oxygen
  • D. sulphur (IV) oxide
View Answer & Discuss (22) JAMB 1987
3

The best treatment for a student who accidentally poured concentrated tetraoxosulphate (VI) acid on his skin in the laboratory is to wash the skin with?

  • A. cold water
  • B. sodium hydroxide solution
  • C. iodine solution
  • D. sodium trioxocarbonate (IV) solution
View Answer & Discuss (62) JAMB 1987
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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4
In which of the following pairs of element is allotropy exhibited by each element?
  • A. Phosphorus and hydrogen
  • B. Oxygen and chlorine
  • C. Sulphur and nitrogen
  • D. Oxygen and sulphur
View Answer & Discuss (14) JAMB 1987
5
Which of the following gases can best be used for demonstrating the fountain experiment?
i) Nitrogen (ii) Ammonia (iii) Nitrogen (I) oxide
(iv) Hydrogen chloride.
  • A. ii and iii
  • B. i and iii
  • C. ii and iv
  • D. ii only
View Answer & Discuss (7) JAMB 1987
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076