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

Chemistry Past Questions

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

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
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
3291

Sieving is a technique used to separate mixtures containing solid particles of

  • A. small sizes
  • B. large sizes
  • C. different sizes
  • D. the same size
View Answer & Discuss JAMB 2018
3292

3H\(_{2(g)}\)+ N\(_{2(g)}\)⇔ 2NH\(_{3(g)}\) ; H= -ve
In the reaction above, lowering of temperature will

  • A. have no effect on the equilibrium position
  • B. increase the rate of both the forward and reverse reactions equally
  • C. favour the forward reaction
  • D. favour the reverse reaction
View Answer & Discuss JAMB 2018
3293

The situation obtained when a perfect gas expands into a vacuum is

  • A. ΔH is positive and TΔ S is zero
  • B. ΔH is positive and T Δ S is negative
  • C. ΔH is negative and TΔ S is zero
  • D. ΔH is zero and T Δ S is positive
View Answer & Discuss (1) JAMB 2018
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
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
3294

The general formula of alkanones is

  • A. RCHO
  • B. R\(_2\)CO
  • C. RCOOH
  • D. RCOOR
View Answer & Discuss (3) JAMB 2018
3295

The alkanoic acid found in human sweat is

  • A. CH\(_3\)-COOH
  • B. CH\(_3\)—CH\(_2\)—COOH
  • C. H-COOH
  • D. CH\(_3\)
View Answer & Discuss JAMB 2018
Start a Free Practice Test
 
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
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