WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Chemistry JAMB Past Questions

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

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
1916

In the laboratory preparation of oxygen, the gas cannot be collected by downward displacement of air because

  • A. the density of oxygen is greater than that of air
  • B. the density of air is nearly the same as that of oxygen
  • C. oxygen is a component of air
  • D. air is an impure substance
View Answer & Discuss (10) JAMB 2018
1917

2KClO\(_3\)(s) → 2KCl(s) + 3O\(_2\)(g)
The importance of the catalyst in the reaction above is that

  • A. heating may not be required before the reaction takes place
  • B. the reaction is controllable even at a high temperature
  • C. the reaction produces large quantity of oxygen
  • D. the reaction takes place more rapidly at a lower temperature
View Answer & Discuss (3) JAMB 2018
1918

Which of the following is used to power steam engines?

  • A. lubricating oil
  • B. coal
  • C. bitumen
  • D. diesel oil
View Answer & Discuss (3) JAMB 2018
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
Your School's Whatsapp Group - Join Us now
1919

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. 5cm\(^3\)
  • B. 10cm\(^3\)
  • C. 20cm\(^3\)
  • D. 50cm\(^3\)
View Answer & Discuss (6) JAMB 2018
1920

To what volume must 300cm\(^3\) of 0.60M sodium hydroxide solution be diluted to give a 0.40M solution?

  • A. 450cm\(^3\)
  • B. 300cm\(^3\)
  • C. 200cm\(^3\)
  • D. 150cm\(^3\)
View Answer & Discuss (6) JAMB 2018
Start a Free Practice Test
 
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
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now