WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
JAMB CBT Mobile App 2025 - Free Download

Chemistry WAEC Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

JAMB CBT Mobile App 2025 - Free Download
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Software 2025 - Free Download
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
1856

What number of moles of oxygen would exert a pressure of 10 atm at 320 K in an 8.2 dm\(^{3}\) cylinder?
[R=0.082 atm dm\(^{-3}\) mol\(^{-1}\) K\(^{-1}\)]

  • A. 0.32
  • B. 1.52
  • C. 3.13
  • D. 31.25
View Answer & Discuss WAEC 2022
1857

If 50 cm\(^{3}\) of a saturated solution of KNO\(_{3}\) at 40 °C contained 5.05 g of the salt, its solubility at the same temperature would be
[KNO\(_{3}\) = 101]

  • A. 1.0 mol dm\(^{-3}\)
  • B. 1.5 mol dm\(^{-3}\)
  • C. 2.0 mol dm\(^{-3}\)
  • D. 5.0 mol dm\(^{-3}\)
View Answer & Discuss (5) WAEC 2022
1858

Which of the following elements would displace copper from a solution of copper ions?

  • A. silver
  • B. gold
  • C. lead
  • D. mercury
View Answer & Discuss WAEC 2022
JAMB CBT Software 2025 - Free Download
JAMB CBT Mobile App 2025 - Free Download
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
1859

What is the percentage composition of carbon
in Ca(HCO3)\(_{2}\) ?
[ Ca = 40.0, 0= 16.0, C = 12.0, H= 1.0]

  • A. 22.2%
  • B. 14.8%
  • C. 7.4%
  • D. 3.7%
View Answer & Discuss (2) WAEC 2022
1860

Which of the following bond types is intermolecular?

  • A. Covalent bond
  • B. Hydrogen bond
  • C. Ionic bond
  • D. Metallic bond
View Answer & Discuss (2) WAEC 2022
Start a Free Practice Test
 
JAMB CBT Software 2025 - Free Download
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
JAMB CBT Mobile App 2025 - Free Download