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Chemistry Past Questions

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1496

The correct name of the compound with the above structural formula is

  • A. 2-methylbut -1-ene
  • B. 2-methylbut -2-ene
  • C. 2-methylbutane
  • D. 2-ethylprop-1 -ene
  • E. 2-ethylprop-2-ene
View Answer & Discuss (17) JAMB 1983
1497
How many isomeric forms are there for the molecular formula C3H6Br2?
  • A. 1
  • B. 2
  • C. 3
  • D. 4
  • E. 5
View Answer & Discuss (13) JAMB 1983
1498
A piece of burning sulphur will continue to burn in a gas jar of oxygen to give misty fumes which readily dissolved in water. The resulting liquid is
  • A. sulphur (VI) trioxide
  • B. tetraoxosulphate (VI) acid
  • C. trioxosulphate (IV) acid
  • D. dioxosulphate (II) acid
  • E. hydrogen sulphide
View Answer & Discuss (7) JAMB 1983
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1499
Sodium sulphate decahydrate (Na2SO4.10 H2O) on exposure to air loses all its water of crystallization.
The process of loss is known as
  • A. efflorescence
  • B. hygroscopy
  • C. deliquescence
  • D. effervescence
  • E. dehydration
View Answer & Discuss (1) JAMB 1983
1500
Which of the following happens during the electrolysis of molten sodium chloride?
  • A. Sodium ion loses an electron
  • B. Chlorine atom gains an electron
  • C. Chlorine ion gains an electron
  • D. Sodium ion is oxidized
  • E. Chloride ion is oxidized
View Answer & Discuss (6) JAMB 1983
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