WAEC and NECO CBT App for Mobile Devices - 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

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 Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now
1786
Which of the reactions represented by the following equations will take place at room temperature?
  • A. C 6 H2O → CO + H2
  • B. CuO + H2 → Cu + H2O
  • C. N2 + 3H2 → 2NH3
  • D. 2Na + 2H2O → 2NaOH + H2
  • E. 2Fe + 3CI2 → 2FeCI3
View Answer & Discuss (4) WAEC 1991
1787
Which of the following is not a direct petroleum product?
  • A. Methane
  • B. Ethanol
  • C. Petrol
  • D. Vaseline
  • E. Kerosene
View Answer & Discuss (10) WAEC 1991
1788
How many principal electronic shells has an atom whose electronic configuration is shown below? 1s22s22p63s1
  • A. 1
  • B. 2
  • C. 3
  • D. 4
  • E. 11
View Answer & Discuss (3) WAEC 1991
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
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
1789
Which of the following properties is not characteristic of electrovalent compounds?
  • A. formation of crystalline solids
  • B. solubility in polar solvents
  • C. high vapour pressures
  • D. high melting and boiling points
  • E. ability to conduct electricity in aqueous solution
View Answer & Discuss (4) WAEC 1991
1790
Compounds that have the same molecular formula but different structures are said to be
  • A. allotropic
  • B. polymorphic
  • C. polymeric
  • D. isomeric
  • E. isotopic
View Answer & Discuss (2) WAEC 1991
Start a Free Practice Test
 
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
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now