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Chemistry WAEC Past Questions

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1556

A solid with higher melting and boiling points is likely to be?

  • A. Covalent compound
  • B. A Dative compound
  • C. An Electrovalent compound
  • D. A Non-metal
View Answer & Discuss WAEC 2019
1557

Which of the following metals reacts slowly with cold water?

  • A. Iron
  • B. Silver
  • C. Calcium
  • D. Pottassium
View Answer & Discuss (1) WAEC 2019
1558

which of the following elements has the highest ionization energy?

  • A. Calcium
  • B. Chlorine
  • C. Flourine
  • D. Magnesium
View Answer & Discuss (5) WAEC 2019
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1559

The bleaching action of chlorine is through the process?

  • A. Hydration
  • B. Hydrolysis
  • C. Reduction
  • D. Oxidation
View Answer & Discuss WAEC 2019
1560

If 6.5g of magnesium ribbon reacts completely with Hydrochloric acid, how many grams of hydrogen gas would be liberated?

Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g)

[ H = 1.0, Mg = 24.0 ]

  • A. 0.54g
  • B. 0.70g
  • C. 1.08g
  • D. 1.40g
View Answer & Discuss (1) WAEC 2019
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