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Chemistry 2016 WAEC Past Questions

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31

On evaporation to dryness, 350cm\(^3\) of saturated solution of salt Z gave 55.5g of salt. What is the solubility of the salt? [Z = 101]

  • A. 1.57 moldm-3
  • B. 3.14 moldm-3
  • C. 6.28 moldm-3
  • D. 12.56 moldm-3
View Answer & Discuss (2) WAEC 2016
32
Which of the following salts when dissolved in water will form a solution that will change blue litmus to red?
  • A. CH3COONa
  • B. NH4Cl
  • C. NaCl
  • D. KCl
View Answer & Discuss (10) WAEC 2016
33
Which of the following bonds are broken when ethanol is boiled?

I. Covalent bonds
II. Ionic bonds
III. Hydrogen bonds
  • A. I only
  • B. II only
  • C. III only
  • D. I, II, III
View Answer & Discuss (2) WAEC 2016
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34
A compound with molecular formula CH2O2 is
  • A. A Carbohydrate
  • B. A Carboxylic acid
  • C. An alkanol
  • D. An ester
View Answer & Discuss (2) WAEC 2016
35
The quality of electricity required to discharge 1 mole of univalent ion is
  • A. 9600C
  • B. 48250C
  • C. 96500C
  • D. 193000C
View Answer & Discuss WAEC 2016
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