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Chemistry Past Questions

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1

X + Y → Z. The rate equation for the chemical reaction above is \(\frac{-Δx}{Δt}\) = K[X]\(^2\)[Y].
The overall order of the reaction is?

  • A. 0.0
  • B. 1.0
  • C. 2.0
  • D. 3.09
View Answer & Discuss (19) JAMB 1999
2

How many unpaired electron(s) are there in the nitrogen sub-levels?

  • A. 3
  • B. 2
  • C. 1
  • D. none
View Answer & Discuss (6) JAMB 2010
3

The maximum number of electrons in the L shell of an atom is?

  • A. 2
  • B. 8
  • C. 18
  • D. 32
View Answer & Discuss (7) JAMB 2010
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
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
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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
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208