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Chemistry 1998 JAMB Past Questions

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31
On cracking medicinal paraffin, a gas is evolved which gives a pop sound with a lighted splinter and an oily liquid which decolourizes bromine solution is also obtained. The products of the cracking are ?
  • A. carbon (IV) oxide and alkyne
  • B. carbon (ll) oxide and alkene
  • C. hydrogen gas and alkene
  • D. hydrogen gas and alkane
View Answer & Discuss (2) JAMB 1998
32
How many structural isomers can be drawn for the non-cyclic alkanol with molecular formula C 4H10O?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
View Answer & Discuss (14) JAMB 1998
33
An example of aromatic compound is?
  • A. C6H13OH
  • B. C6H13CI
  • C. C6H5OH
  • D. C6H14
View Answer & Discuss (4) JAMB 1998
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34
Terylene is synthesized from ethane- 1, 2-diol and benzene - 1, 4-dicarboxylic acid by?
  • A. addition reaction
  • B. condensation reaction
  • C. elimination reaction
  • D. substitution reaction
View Answer & Discuss (3) JAMB 1998
35

Which of the following is true concerning the properties of benzene and hexane?

  • A. Both undergo substitution reaction
  • B. Both undergo addition reaction
  • C. Both are solids
  • D. Both can decolourized bromine water
View Answer & Discuss (17) JAMB 1998
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