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Chemistry 1994 JAMB Past Questions

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46
The IUPAC name of the compound above is
  • A. 2,2-dimethyl but -1-yne
  • B. 2,2-dmethyl but -1-ene
  • C. 3,3-dimethyl but -1-ene
  • D. 3,3-dimethyl but-1-yne
View Answer & Discuss (12) JAMB 1994
47

Use the diagram above to answer this question. The reaction taking place in flask G is known as?

  • A. hydrolysis
  • B. double decomposition
  • C. dehydration
  • D. pyrolysis
View Answer & Discuss (4) JAMB 1994
48

MnO4(aq) + 8H + 5Fe2+ \(\to\) Mn2+(aq) + 5Fe3+(aq) + H2O. The oxidation number of maganese in the above reaction changed from

  • A. +7 to +2
  • B. +6 to +2
  • C. +5 to +2
  • D. +4 to +2
View Answer & Discuss (17) JAMB 1994
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49

which of these metals CANNOT replace hydrogen from alkaline solutions?

  • A. Aluminium
  • B. Zinc
  • C. Tin
  • D. Iron
View Answer & Discuss (11) JAMB 1994
50
Clothes should be properly rinsed with water after bleaching because
  • A. the bleach decolourizes the clothes
  • B. chlorine reacts with fabrics during bleaching
  • C. the clothes are sterilized during bleaching
  • D. hydrogen chloride solution is produced during bleaching
View Answer & Discuss (2) JAMB 1994
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