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

Chemistry Past Questions

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

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
1

Environmental pollution is worsened by the release from automobile exhausts of?

  • A. Water vapour
  • B. Steam
  • C. Smoke
  • D. Heavy metals
View Answer & Discuss (18) JAMB 2001
2

A consequence of global warming is?

  • A. air pollution
  • B. water pollution
  • C. increased humudity
  • D. flooding
View Answer & Discuss (21) JAMB 2003
3

The mixture of gases used in a photographer's flash tube is?

  • A. argon and krypton
  • B. krypton and xenon
  • C. helium and argon
  • D. argon and xenon
View Answer & Discuss (7) JAMB 2009
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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
4

When sodium trioxocarbonate (IV) decahydrate loses its water of crystallization to the atmosphere, the process is?

  • A. deliquescence
  • B. efflorescence
  • C. hygroscopic
  • D. effervesecence
View Answer & Discuss JAMB 2009
5

When iron is exposed to moist air, it gradually rusts. This is due to the formation of?

  • A. hydrate iron (III) oxide
  • B. anhydrous iron (III) oxide
  • C. anhydrous iron (II) oxide
  • D. hydrate iron (II) oxide
View Answer & Discuss (1) JAMB 2010
Start a Free Practice Test
 
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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