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Chemistry 1981 JAMB Past Questions

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16

Which of the following processes takes place during electrolysis?

  • A. Positive ions are discharged at the anode bby gaining sufficient electrons to become neutral
  • B. Negative ions are dicharged at the anode by gaining suficient electrons to become neutral
  • C. Positive ions are discharged at the anode by losing sufficient electrons to become neutral
  • D. Negative ions are discharge at the anode by losing sufficient electrons to become neutral
  • E. Nothing happens
View Answer & Discuss (11) JAMB 1981
17
In the preparation of ammonia, which of the following is used as the drying agent?
  • A. CaO
  • B. CaCI2
  • C. Conc. H2SO4
  • D. P2O5
  • E. H3PO4
View Answer & Discuss (6) JAMB 1981
18

Which of the following can have an isomer?

  • A. C2H4
  • B. C4H10
  • C. C3H8
  • D. C2H6
  • E. C6H6
View Answer & Discuss (5) JAMB 1981
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19

Allotropes are elements having?

  • A. different physical but the same chemical properties
  • B. different chemical but the same physical properties
  • C. the same chemical and physical properties
  • D. different atomic structure
  • E. the same position in the periodic table
View Answer & Discuss (19) JAMB 1981
20
A polymerization reaction is one in which?
  • A. small molecules form giant molecules
  • B. atoms form molecules
  • C. giant molecules form small molecules
  • D. molecules form volatile compounds
  • E. a molecule rearranges itself
View Answer & Discuss (1) JAMB 1981
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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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