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Chemistry 1981 JAMB Past Questions

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6
Methane is member of the homologous series called?
  • A. alkenes
  • B. alcohols
  • C. esters
  • D. alkanes
  • E. alkynes
View Answer & Discuss (1) JAMB 1981
7
For iron to rust, there should be present?
  • A. oxygen
  • B. moisture
  • C. carbondioxide
  • D. oxygen and moisture
  • E. oxygen, moisture and carbondioxide
View Answer & Discuss (6) JAMB 1981
8
The mass number of an atom is?
  • A. the number of electrons in the atom
  • B. the number of protons in the nucleus of the atom
  • C. the number of neutrons in the nucleus of the atom
  • D. the sum of numbers of electrons and protons inthe atom
  • E. the sum of numbers of proton and neutrons in the nucleus of the atom
View Answer & Discuss (2) JAMB 1981
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9

Sodium and potassium belong to the same group of the Periodic Table. This is because?

  • A. both are metals
  • B. both are soft and lighter than water
  • C. both form cations by losing electrons
  • D. both have identical electronic configuration
  • E. both react with water vigorously
View Answer & Discuss (28) JAMB 1981
10

Oxidation is the process of?

  • A. gain of electrons
  • B. loss of electrons
  • C. gain of hydrogen
  • D. loss of oxygen
  • E. addition of an electropositive element to a substance
View Answer & Discuss (6) JAMB 1981
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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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