WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free

Chemistry 1988 JAMB Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
11
Which of the following will produce the greatest increase in the rate of the chemical reaction represented by the equation Na2S2O3(aq) + 2HCl(aq) → 2NaCI(aq) + H2O(I) + SO2(g) + S(g)?
  • A. A decrease in temperature and an increase in the concentration of the reactants
  • B. An increase in the temperature and a decrease in the cocentration of the reactants
  • C. An increase in temperature and an increase in the concentration of the reactants
  • D. A decrease in the temperature and a decrease in the concentration of the reactants
View Answer & Discuss (5) JAMB 1988
12
Which of the followingstatements is TRUE?
  • A. The dissolution of NaOH(s) in water is endothermic
  • B. The heat os solution of NaOH(s) is positive
  • C. The NaOH(s) gains heat from the surroundings
  • D. The heat of solution of NaOH(s) is negative
View Answer & Discuss (1) JAMB 1988
13
Which property of a reversible reaction is affected by a catalyst?
  • A. Heat content (enthalphy)
  • B. Energy of activation
  • C. Free energy change
  • D. Equilibrium position
View Answer & Discuss (6) JAMB 1988
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
14
Which of the following is used in fire extinguishers?
  • A. Carbon (ll) oxide
  • B. Carbon (lV) oxide
  • C. Sulphur (lV) oxide
  • D. Ammonia
View Answer & Discuss (2) JAMB 1988
15
When H2S gas is passed into a solution of iron (III) chloride, the colour changes from yellow to green. This is because?
  • A. H(s)S is reduced to S
  • B. Fe3+ ions are oxidized by H(s)S
  • C. Fe3+ ions are oxidized Fe3+ ions
  • D. Fe3+ ions are reduced to Fe2+ ions
View Answer & Discuss (6) JAMB 1988
Start a Free Practice Test
 
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208