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

Chemistry JAMB 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
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
1371

Calcium hydroxide is added in the treatment of town water supply to

  • A. kill bacteria in the water
  • B. facilitate coagulation of organic particles
  • C. facilitate sedimentation
  • D. improve the taste of the water
View Answer & Discuss (10) JAMB 1989
1372

A hydrated salt of formula MSO4.xH2 O CONTAINS 45.3% by mass of water of crystalisation. Calculate the value of x [M = 56, S = 32, O = 16, H = 1 ]

  • A. 3
  • B. 5
  • C. 7
  • D. 10
View Answer & Discuss (15) JAMB 1989
1373

Using 50 cm\(^3\) of 1 M potassium hydroxide and 100 cm\(^3\) of 1 M tetraoxosulphate (VI) acid, calculate the respective volumes in cm\(^3\) of base and acid that would be required to produce the maximum amount of potassium tetraoxosulphate (IV) [K = 39, S = 32, O = 16, H = 1]

  • A. 50, 50
  • B. 25, 50
  • C. 50, 25
  • D. 25, 25
View Answer & Discuss (11) JAMB 1989
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
1374

A solution of calcium bromide contains 20 g dm\(^3\). What is the molarity of the solution with respect to calcium bromide and bromide ions? [Ca = 40, Br = 80]

  • A. 0. 1, 0 . 1
  • B. 0. 1, 0. 2
  • C. 0. 1, 0. 05
  • D. 0.05, 0.1
View Answer & Discuss (12) JAMB 1989
1375
The substance ZnO dissolves in sodium hydroxide solution and mineral acid solution to give soluble products in each case. ZnO is therefore referred to as
  • A. an allotropic oxide
  • B. an amphoteric oxide
  • C. a peroxide
  • D. a dioxide
View Answer & Discuss (2) JAMB 1989
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