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1771

What is the relative molecular mass of the compound below?

 

What is the relative molecular mass of the compound below [H = 1.0; C = 12.0; O = 16.0] - SchoolNGR

 

[H = 1.0; C = 12.0; O = 16.0]

  • A. 137
  • B. 136
  • C. 64
  • D. 59
View Answer & Discuss (13) WAEC 2021
1772

Cathodic protection of metals is based on

  • A. standard electrode potential of hydrogen
  • B. its electrical conductivity
  • C. nature of oxides formed
  • D. relative tendencies of oxidation
View Answer & Discuss (5) WAEC 2021
1773

If humid air is polluted by chlorine discharged, the air can be restored by sprinkling

  • A. solid MnO\(_{2}\)
  • B. acidified KMnO\(_{4}\)
  • C. acidified FeSO\(_{4}\)
  • D. saturated NaCl(aq)
View Answer & Discuss (8) WAEC 2021
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1774

The alkanol represented by the structure above is

  • A. primary and dihydric
  • B. secondary and monohydric
  • C. tertiary and dihydric
  • D. secondary and dihydric
View Answer & Discuss (18) WAEC 2021
1775

Which of the following pairs of compounds would form a precipitate when their aqueous solutions are mixed?

  • A. NaCl and KNO\(_{3}\)
  • B. KCL and NaNO\(_{3}\)
  • C. K\(_{2}\)SO\(_{4}\) and BaCl\(_{2}\)
  • D. NH\(_{4}\)NO\(_{3}\) and CO\(_{3}\)
View Answer & Discuss (4) WAEC 2021
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