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

Chemistry 1993 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
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
21
The standard enthalpies of formation of CO2(g), H2O(g) and CO(g) in kJ mol- are -394, -242 and -110 respectively. What is the standard enthalpy change for the reaction CO(g) + H2(g)O → CO2(g) + H2(g)?
  • A. -42 KJ mol-
  • B. +42 KJ mol-
  • C. -262 KJ mol-
  • D. +262 KJ mol-
View Answer & Discuss (12) JAMB 1993
22

10g of a solid is in equilibrium with its own vapour.
When 1 g of a small amount of solid is added, the vapour pressure?

  • A. remains the same
  • B. drops
  • C. increases by 1%
  • D. increases by 99%
View Answer & Discuss (16) JAMB 1993
23
NaCI(s) + H2SO4(I) → HCI(g) + NaHSO4(s).
In the reaction above, H2SO4 behaves as?
  • A. a strong acid
  • B. an oxidizing agent
  • C. a good solvent
  • D. a dehydrating agent
View Answer & Discuss (17) JAMB 1993
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post UTME Past Questions Agent
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
24

Which of these gases can be dried with concentrated H2SO4?

  • A. HBr
  • B. H2S
  • C. NH3
  • D. SO2
View Answer & Discuss (6) JAMB 1993
25
Which of these salts will produce its metal, oxygen and nitrogen (IV) oxide on heating?
  • A. Silver and trioxonitrate (V)
  • B. Sodium trioxonitrate (V)
  • C. Calcium trioxonitrate (V)
  • D. Lithium trioxonitrate (V)
View Answer & Discuss (3) JAMB 1993
Start a Free Practice Test
 
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now