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
  1. Home
  2. Classroom
  3. Chemistry

Chemistry Past Questions

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

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
4236

When an acidic solution is diluted, what happens to its pH?

  • A. It depends on the specific acid
  • B. It decreases
  • C. It remains the same
  • D. It increases
View Answer & Discuss (6) JAMB 2023
4237

Which of the following factors does NOT affect the rate of a chemical reaction?

  • A. Concentration of reactants
  • B. Presence of a catalyst
  • C. Molecular weight of products
  • D. Temperature
View Answer & Discuss JAMB 2023
4238

Which organic compound is responsible for the characteristic aroma of fruits?

  • A. Alkane
  • B. Alkyne
  • C. Ester
  • D. Amine
View Answer & Discuss JAMB 2023
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
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
4239

What is the molar mass of water (H2O)?

  • A. 18 g/mol
  • B. 22 g/mol
  • C. 16 g/mol
  • D. 12 g/mol
View Answer & Discuss JAMB 2023
4240

What is the chemical formula of rust, which is formed on the surface of iron in the presence of oxygen and moisture?

  • A. Fe\(_3\)O\(_4\)
  • B. FeO
  • C. Fe(OH)3
  • D. Fe\(_2\)O\(_3\)
View Answer & Discuss JAMB 2023
Start a Free Practice Test
 
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
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