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Chemistry Past Questions

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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
4081

Consider the structure above

How many carbon atoms does the parent chain contain? 

  • A. 5
  • B. 4
  • C. 3
  • D. 2
View Answer & Discuss (12) WAEC 2021
4082

Under which conditions of pressure (p) and temperature (T) would the volume of an inflated ballon increase? When

  • A. P and T are increased
  • B. both T and P are decreased
  • C. T is increased and P is decreased
  • D. T is decreased and P is increased
View Answer & Discuss (2) WAEC 2021
4083

The collision between ideal gas molecules are considered to be perfectly elastic because

  • A. they collide without losing energy
  • B. they move randomly in a straight line
  • C. their average kinetic energy is variable
  • D. the distance between them is large compared to their size
View Answer & Discuss (1) WAEC 2021
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4084

Elements with high ionization energies would-------

  • A. lose electrons easily
  • B. have large atomic radii
  • C. have high effective nuclear charges
  • D. have low atomic numbers
View Answer & Discuss (1) WAEC 2021
4085

Which of the following statements about Group VII elements is correct?

  • A. they are present in the same physical state
  • B. they are strong reducing agents
  • C. their reactivity decreases down the group
  • D. they exist as monoatomic molecules
View Answer & Discuss (2) WAEC 2021
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