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

Chemistry 1989 JAMB 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 App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now
26

Which of the following reactions is (are) feasible?
I Br (l) + 2CI\(_2\)(aq) → 2Br(aq) + CI\(_2\)(g)
ll 2 I (aq) + Br\(_2\)(L) → 2Br (aq) + I\(_2\)(s)
lll 2F (aq) + CI\(_2\)(g) → 2CI (aq) + F\(_2\)(g)

IV 2F(aq) + Br\(_2\)(l) → 2Br (aq) + F\(_2\)(g)

  • A. l
  • B. ll
  • C. l and lll
  • D. lll and lV
View Answer & Discuss (12) JAMB 1989
27
Bleaching powder, CaOCI2, H2O, deteriorates on exposure to air because
  • A. it loses its water of crystallization
  • B. atmospheric nitrogen displaces chlorine from it
  • C. carbon (IV) oxide of the atmosphere displaceschlorine from it
  • D. bleaching agents should be stored in solution
View Answer & Discuss (6) JAMB 1989
28
The products of the thermal decomposition of ammonium trioxonitrate (V) are
  • A. NO 2 and oxygen
  • B. NH3 and oxygen
  • C. nitrogen and water
  • D. N2O and water
View Answer & Discuss (4) JAMB 1989
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
Post UTME Past Questions Agent
29
The scale of a chemical balance is made of iron plate and coated with copper electrolytically because
  • A. iron is less susceptible to corrosion than copper
  • B. copper is twice as less susceptitible to corrosion as iron
  • C. copper is less susceptible to corrosion than iron
  • D. copper and iron are equally susceptible to corrosion
View Answer & Discuss (6) JAMB 1989
30
A metal is extracted from its ore by the electrolysis of its molten chloride and it displaces lead from lead (ll) trioxonitrate (V) solution. The metal is
  • A. copper
  • B. aluminium
  • C. zinc
  • D. sodium
View Answer & Discuss (4) JAMB 1989
Start a Free Practice Test
 
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
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