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

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
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
851

A few drops of concentrated HCI are added to about 10cm3 of a solution of pH 3.4. The pH of the resulting mixtures is?

  • A. less than 3.4
  • B. greater than 3.4
  • C. unaltered
  • D. the same as that of pure water
View Answer & Discuss (5) JAMB 1994
852
Which of the following compounds is a base?
  • A. CO2
  • B. CaO
  • C. H3PO3
  • D. CH3COOCH3
View Answer & Discuss (2) JAMB 1994
853

20 cm\(^3\) of a 2.0 M solution of ethanoic acid was added to excess of 0.05 M sodium hydroxide. The mass of the salt produced is?

(Na = 23, C = 12, O = 16, H = 1)

  • A. 2.50 g
  • B. 2.73 g
  • C. 3.28 g
  • D. 4.54 g
View Answer & Discuss (16) JAMB 1994
Post UTME Past Questions Agent
Your School's Whatsapp Group - Join Us now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
854

What volume of Oxygen measured at s.t.p would be liberated on electrolysis by 9650 coulombs of electricity?
(Molar volume of gas = 22.4 dm\(^3\), 1F = 96,500 C/mol)

  • A. 22.4 dm3
  • B. 11.2 dm3
  • C. 1.12 dm3
  • D. 0.560 dm3
View Answer & Discuss (38) JAMB 1994
855
Crude copper could be purified by the electrolysis of concentrated copper (II) chloride if the crude copper is?
  • A. made both the anode and the cathode
  • B. made the cathode
  • C. made the anode
  • D. dissolved in the solution
View Answer & Discuss (3) JAMB 1994
Start a Free Practice Test
 
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Your School's Whatsapp Group - Join Us now
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