2 weeks to JAMB & WAEC: Download and activate The Myschool App - All JAMB & WAEC questions, answers and explanations available offline
JAMB CBT Mobile App 2025 - Free Download
JAMB CBT Software 2025 - Free Download
  1. Home
  2. Classroom
  3. Chemistry
  4. JAMB 2015

Chemistry 2015 JAMB Past Questions

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

JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Software 2025 - Free Download
JAMB CBT Mobile App 2025 - Free Download
Giveaway Alert: JAMB Mock Exam 2025
61

The oxidation state of sulphur on H2SO4 acid is

  • A. -4
  • B. +6
  • C. 4
  • D. -8
View Answer & Discuss (1) JAMB 2015
62
In the electrolysis of brine the anode is
  • A. platinum
  • B. copper
  • C. zinc
  • D. carbon
View Answer & Discuss (3) JAMB 2015
63
Calculate the relative molecular mass of Limestone CaCO3, (Ca = 40, C =12, O = 16)
  • A. 56
  • B. 100
  • C. 76
  • D. 90
View Answer & Discuss (4) JAMB 2015
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Mobile App 2025 - Free Download
JAMB CBT Software 2025 - Free Download
Giveaway Alert: JAMB Mock Exam 2025
64

When steam is passed over red hot carbon the substances produced are

  • A. hydrogen and trioxocarbonate (IV) acid
  • B. hydrogen, oxygen and carbon (IV) oxide
  • C. hydrogen and carbon (ii) oxide
  • D. hydrogen and carbon (IV) oxide
View Answer & Discuss (2) JAMB 2015
Start a Free Practice Test
 
JAMB CBT Software 2025 - Free Download
Giveaway Alert: JAMB Mock Exam 2025
JAMB CBT Mobile App 2025 - Free Download
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!