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Chemistry 2016 WAEC Past Questions

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26
The pH of four solutions M,N,Q and R are 2,6,8 and 11 respectively.
Which of the following deductions about the solutions is correct?
  • A. The pH of N is increased when the solution is diluted
  • B. The pH of Q is increased when the solution is evaporated
  • C. M is the most alkaline solution
  • D. R is the most acidic solution
View Answer & Discuss (6) WAEC 2016
27
Consider the following reaction equation
H3O+(aq) + OH(aq) \(\rightarrow\) 2H2O(1)
The reaction represents
  • A. Esterification
  • B. Hydrolysis
  • C. Neutralization
  • D. Redox
View Answer & Discuss WAEC 2016
28
The refreshing characteristic taste of fizzy drinks is due ot the presence of
  • A. Carbon(IV)oxide
  • B. Glucose
  • C. Hydrogen
  • D. Sodium Citrate
View Answer & Discuss (1) WAEC 2016
WAEC offline past questions - with all answers and explanations in one app - Download for free
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29
Chemical equilibrium is attained when
  • A. All the reactants have been completely used up
  • B. The reaction goes to completion
  • C. The concentration of reactants and products remain constant
  • D. The concentration of reactants and products are equal
View Answer & Discuss (8) WAEC 2016
30

Which of the following factors will affect the rate of the reaction represented by the following equation?
2HCl(aq) + CaCO3(s) \(\rightarrow\) CaCl2(aq) + H2O(1) + CO2(g)

I. Pressure
II.Concentration
III. Nature of reactants
IV. Temperature

  • A. I and II only
  • B. II, III and IV only
  • C. I, II and III only
  • D. I, II. III and IV
View Answer & Discuss (7) WAEC 2016
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts