Chemistry 2018 JAMB Past Questions

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1

A given amount of gas occupies 10.0dm\(^3\) at 4atm and 273°C. The number of moles of the gas present is?

[Molar volume of gas at s.t.p = 22.4dm\(^3\)]

  • A. 0.89 mol
  • B. 1.90 mol
  • C. 3.80 mol
  • D. 5.70 mol
View Answer & Discuss (27) JAMB 2018
2

According to Charles' law, the volume of a gas becomes zero at

  • A. 0°C
  • B. -100°C
  • C. -273°C
  • D. -373°C
View Answer & Discuss (5) JAMB 2018
3

A substance that is used as a ripening agent for fruits is

  • A. ethene
  • B. propane
  • C. methane
  • D. butane
View Answer & Discuss (2) JAMB 2018
4

The Sulphide which is insoluble in dilute hydrochloric acid is

  • A. FeS
  • B. CuS
  • C. ZnS
  • D. Na2S
View Answer & Discuss (10) JAMB 2018
5

What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide

  • A. 14
  • B. 13
  • C. 12
  • D. 11
View Answer & Discuss (15) JAMB 2018