[ Post UTME Begins ]: View The List Of Schools That Have Released 2026 Post-UTME Forms.
Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
  1. Home
  2. Classroom
  3. Chemistry
  4. WAEC

Chemistry WAEC Past Questions

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

Your School's Whatsapp Group - Join Us now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
1621

The boiling point of pentane is higher than that of propane because?

  • A. carbon-carbon single bonds are stronger than carbon-hydrogen bonds.
  • B. Pentane has more covalent bonds to break
  • C. Pentane does not burn easily as propane
  • D. The intermolecular forces in pentane are stronger than those of propane
View Answer & Discuss (1) WAEC 2020
1622

Which of the following solids would not decompose on heating?

  • A. Ammonium chloride
  • B. Lead (i) trioxonitrate (V)
  • C. Potassium trioxocarbonate (IV)
  • D. Sodium hydrogen trioxocarbonate (IV)
View Answer & Discuss WAEC 2020
1623

The following molecules have double covalent bonds between two atoms except?

  • A. oxygen
  • B. carbon (IV)oxide
  • C. ethene
  • D. water
View Answer & Discuss WAEC 2020
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
Your School's Whatsapp Group - Join Us now
1624

The type of isomerism exhibited by cis and trans isomers is?

  • A. positional
  • B. geometrical
  • C. functional
  • D. optical
View Answer & Discuss WAEC 2020
1625

Which of the following compounds has the lowest boiling point?

  • A. C\(_4\)H\(_10\)
  • B. CH\(_3\)COOH
  • C. H\(_2\)O
  • D. C\(_2\)H\(_5\)OH
View Answer & Discuss (5) WAEC 2020
Start a Free Practice Test
 
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now