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Chemistry 1997 WAEC Past Questions

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26

Which of the following is the relative molecular mass of a compound which has empirical formula CH\(_2\)O? (H = 1; C = 12; O = 16)

  • A. 42
  • B. 45
  • C. 126
  • D. 180
  • E. 145
View Answer & Discuss (12) WAEC 1997
27
The by-product of the fermentation of sugar to ethanol is
  • A. propane -1,2,3-triol
  • B. ethyl ethanoate
  • C. ethanedioc acid
  • D. propanol
  • E. carbon (lV) oxide
View Answer & Discuss WAEC 1997
28
Alkanes react with the halogens mainly by
  • A. oxidation
  • B. polymerization
  • C. addition
  • D. reduction
  • E. substitution
View Answer & Discuss (1) WAEC 1997
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29
Which of the following is used widely in the manufacture of flavours and perfumes?
  • A. Alkanoates
  • B. Alkanones
  • C. Alkanes
  • D. Complex sugars
  • E. Aliphatic compounds
View Answer & Discuss (2) WAEC 1997
30
The use of diamond in abrasives is due ti its
  • A. high melting point
  • B. durability
  • C. lustre
  • D. hardness
  • E. octahedral shape
View Answer & Discuss WAEC 1997
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