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Chemistry 2020 WAEC Past Questions

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1

Which of the following substances is an example of a fine chemical?

  • A. Sodium hydroxide
  • B. Hydrochloric acid
  • C. Ethylene
  • D. Ammonia
View Answer & Discuss (4) WAEC 2020
2

 

The IUPAC name of the compound represented by the structure below is ?








 

  • A. 2- chloro but-I ,3-diene.
  • B. But-1,3-chlorodiene.
  • C. 2-chloro but-diene.
  • D. 3 -chloro but -1.3-diene.
View Answer & Discuss (1) WAEC 2020
3

Which or the following substances is a polypeptide?

  • A. Starch
  • B. Glycogen
  • C. Protein
  • D. Fats
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4

Which or the following products could be formed during incomplete combustion of a hydrocarbon.

i.Carbon ii. Hydrogen III. Carbon (Il) oxide

  • A. I only
  • B. I and II only
  • C. I and III only
  • D. II and III only
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5

What quantity of electrons is lost when one mole of iron (II) ions is oxidized to iron (III) ?

  • A. 0 mole
  • A. 3 moles
  • B. I mole
  • C. 2 moles
View Answer & Discuss (3) WAEC 2020
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts