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

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 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
1

In the reaction between sodium hydroxide and sulphuric acid solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralise 10cm3 of 1.25 molar sulphuric acid?

  • A. 5cm3
  • B. 10cm3
  • C. 20cm3
  • D. 25cm3
  • E. 50cm3
View Answer & Discuss (152) JAMB 1978
2

In titration involving sodium hydroxide and dilute hydrochloric acid, where would you place the base?

  • A. in the beaker
  • B. in the conical flask
  • C. in a burette
  • D. in the standard flask
  • E. in the measuring cylinder
View Answer & Discuss (12) JAMB 1978
3

What volume of gas is evolved at S.t.p if 2g of calcium trioxocarbonate (IV) is added to a solution of hydrochloric acid?
[Ca = 40, C = 12, O = 16, Cl = 35.5, H = 1 Molar volume of agas at s.t.p = 22.4 dm3

  • A. 112 cm2
  • B. 224 cm2
  • C. 448 cm2
  • D. 2240 cm2
View Answer & Discuss (7) JAMB 2004
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
4

The percentage of water of crystallization in ZnSO\(_4\).7H\(_2\)O is?
[Zn = 65, S = 32, O = 16, H = 1]

  • A. 33%
  • B. 44%
  • C. 55%
  • D. 87%
View Answer & Discuss (13) JAMB 2009
5

Calculate the volume of 0.5 mol dm-3 H2So4 that is neutralized by 25 cm3 of 0.1 mol dm-3 NaOH?

  • A. 5.0 cm3
  • B. 2.5 cm3
  • C. 0.4 cm3
  • D. 0.1 cm3
View Answer & Discuss (16) JAMB 2010
Start a Free Practice Test
 
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