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Chemistry JAMB Past Questions

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2466

The relative molecular mass of an alkanoic acid with the empirical formula of CH\(_2\)O is

[ H = 1, C = 12, O = 16 ]

  • A. 46
  • B. 88
  • C. 60
  • D. 72
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2467

Commercial deodorant is an example of a colloid called

  • A. aerosol
  • B. sol
  • C. foam
  • D. emulsion
View Answer & Discuss (1) JAMB 2025
2468

Calculate the time required to liberate 9g of Aluminium metal, when a current of 18A is passed through it.

(1F = 96500C , Al = 27)

  • A. 1769.17 minutes
  • B. 89.34 minutes
  • C. 5360.58 minutes
  • D. 29.48 minutes
View Answer & Discuss (8) JAMB 2025
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2469

What is the function of concentrated H\(_2\)SO\(_4\)?

  • A. It reacts with metals to give a salt and hydro gas
  • B. It is a dehydrating agent
  • C. It neutralizes alkali
  • D. It produces a cryolite precipitate with basic solution
View Answer & Discuss (1) JAMB 2025
2470

In oxidation reactions, electrons are

  • A. hydrolysed
  • B. removed
  • C. added
  • D. hydrated
View Answer & Discuss (1) JAMB 2025
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