WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
  1. Home
  2. Classroom
  3. Chemistry
  4. JAMB 2021

Chemistry 2021 JAMB Past Questions

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

Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
11

The gas which causes global warming is?

  • A. O\(_{2}\)
  • B. CO\(_{2}\)
  • C. N\(_{2}\)
  • D. He
View Answer & Discuss (7) JAMB 2021
12

Oxygen is absent in?

  • A. Kerosene
  • B. Soil
  • C. Glass
  • D. Cement
View Answer & Discuss (13) JAMB 2021
13

A sample of any of the following substances disappears after some time when exposed to air like camphor, naphthalene, or dry ice. This phenomenon is called?

  • A. Sublimation
  • B. Evaporation
  • C. Diffusion
  • D. Radiation
View Answer & Discuss (1) JAMB 2021
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
14

The maximum electron in N shell is?

  • A. 2
  • B. 8
  • C. 18
  • D. 32
View Answer & Discuss (6) JAMB 2021
15

Neutrons were discovered by?

  • A. James Chadwick
  • B. Ernest Rutherford
  • C. J.J Thompson
  • D. John Dalton
View Answer & Discuss (2) JAMB 2021
Start a Free Practice Test
 
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208