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Chemistry 2022 WAEC Past Questions

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6

The by-product of fermentation of sugar is

  • A. carbon(IV) oxide.
  • B. ethanoic acid.
  • C. propanol
  • D. propan-1, 2, 3- triol.
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7

Which of the following sugars is a product of the condensation of monosaccharides?

  • A. galactose
  • B. maltose
  • C. glucose
  • D. fructose
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8

The cleansing effect of soap is low in acidic water because of

  • A. the formation of unionized fatty acid.
  • B. increase in the pH of the soap molecules.
  • C. anti-biodegradable effect of hydrogen ions
  • D. the hardness of the acidic water.
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
9

The following compounds are condensation polymers except

  • A. nylon
  • B. protein
  • C. starch
  • D. polyethene
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10

What amount of electricity is required to deposit one mole of aluminium from a solution of AlCl3?

  • A. One Faraday
  • B. One ampere
  • C. Three Faradays
  • D. Three amperes
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709