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Chemistry 2009 WAEC Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1
Which of the following scientists discovered the neutron?
  • A. Ernest Rutherford
  • B. J.J Thompson
  • C. James Chadwick
  • D. R. A. M illikan
View Answer & Discuss (1) WAEC 2009
2
How many protons does 4020Ca contain?
  • A. 20
  • B. 30
  • C. 40
  • D. 60
View Answer & Discuss (1) WAEC 2009
3
If 100 atoms of element X contains 70 atoms of 9X and 30 atoms of 11X, calculate the relative atomic mass of X
  • A. 9.6
  • B. 10.6
  • C. 11.6
  • D. 20.0
View Answer & Discuss (3) WAEC 2009
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO offline past questions - All questions, answers & explanations in one app 25712
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4
Consider the reaction represented by the equation: 23892U + 10 → 139 56Ba + 94 36Kr + 31 0n. The reaction represents a
  • A. nuclear fission
  • B. nuclear fusion
  • C. radioactive decay
  • D. spontaneous disintegration
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5
How many orbitals are associated with the p-sub energy level?
  • A. 2
  • B. 3
  • C. 5
  • D. 6
View Answer & Discuss (2) WAEC 2009
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts