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2086
Environmental pollution problems are generally more severe in countries which have
  • A. dense population
  • B. low birth rate
  • C. great land mass
  • D. limited industries
View Answer & Discuss WAEC 1999
2087
The greenhouse effect is a climatic condition associated with the presence of excess
  • A. carbon (IV) oxide
  • B. hydrogen sulphide
  • C. nitrogen (ll) oxide
  • D. ammonia gas
View Answer & Discuss WAEC 1999
2088

The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of the elements would be unreactive?

  • A. Q
  • B. R
  • C. S
  • D. T
View Answer & Discuss (9) WAEC 2000
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2089

Chlorine atom forms \(Cl^{-}\) by

  • A. losing one electron
  • B. Sharing one electron
  • C. Donating lone pair of electrons
  • D. Gaining one electron
View Answer & Discuss (2) WAEC 2000
2090

An element Z has a combining power of 3. Which of the following formulae is correct of its compounds?

  • A. ZSO3
  • B. Z3CI2
  • C. Z 2O 3
  • D. ZS3
View Answer & Discuss (10) WAEC 2000
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts