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Chemistry JAMB Past Questions

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496

If glucose is heated with concentration tetraoxosulphate (VI) acid, it will be dehydrated to

  • A. carbon
  • B. carbon (IV) oxide
  • C. ethene
  • D. ethanol
View Answer & Discuss (9) JAMB 2008
497

The IUPAC nomenclature for the structure above is

  • A. 2, 3 - dichloro - 4, 4, 5 - trimethyl pent - 2 - ene
  • B. 4, 5 - dichloro - 2, 3 - dimethyl hex - 2 - ene
  • C. 2, 3 - dichloro - 4, 4 - dimethyl hex - 2- ene
  • D. 2, 3 dichloro - 2, 2 - dimethyl hex - 2 - ene
View Answer & Discuss (67) JAMB 2008
498

A hydrocarbon X with a molar mass of 26 consists of 92.3% carbon. What is its molecular formular?

  • A. C2H2
  • B. C3H3
  • C. C4H4
  • D. C5H5
View Answer & Discuss (14) JAMB 2008
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499

A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into

  • A. CH2 = CH - CH2 - CH3
  • B. CH3 CH2 - C ≡ CH
  • C. CH3 CH2 CH2 CH3
  • D. CH3 - C C - CH3
View Answer & Discuss (1) JAMB 2008
500

Reduction of nitroalkanes, nitrites and amides is a route for the preparation of

  • A. amines
  • B. alkenes
  • C. polymers
  • D. detergents
View Answer & Discuss (3) JAMB 2008
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