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Chemistry 2021 JAMB Past Questions

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11

The gas which causes global warming is?

  • A. O\(_{2}\)
  • B. CO\(_{2}\)
  • C. N\(_{2}\)
  • D. He
View Answer & Discuss (9) JAMB 2021
12

Oxygen is absent in?

  • A. Kerosene
  • B. Soil
  • C. Glass
  • D. Cement
View Answer & Discuss (20) 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 (8) JAMB 2021
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14

The maximum electron in N shell is?

  • A. 2
  • B. 8
  • C. 18
  • D. 32
View Answer & Discuss (10) JAMB 2021
15

Neutrons were discovered by?

  • A. James Chadwick
  • B. Ernest Rutherford
  • C. J.J Thompson
  • D. John Dalton
View Answer & Discuss (3) JAMB 2021
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