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Chemistry WAEC Past Questions

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1941

The product of the reaction between ethanol and excess acidified K\(_2\)Cr\(_2\)O\(_7\) is

  • A. CH\(_2\)=CH\(_2\)
  • B. CH\(_3\)OCH\(_3\)
  • C. CH\(_3\)COOH
  • D. CH\(_3\)CH\(_3\)
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1942

Which of the following statements about ammonium salt is correct? It

  • A. dissolves in water to form solution of pH > 1
  • B. dissolves in water to form solution of pH < 7
  • C. does not decompose on heating
  • D. is insoluble in water
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1943

Ethanedioic acid is an organic solid that can be purified by 

  • A. decantation
  • B. distillation
  • C. crystallization
  • D. filtration
View Answer & Discuss (2) WAEC 2024
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1944

Which of the following functional groups is present in alkanoic acid?

  • A. -COOH
  • B. -OH
  • C. -COOR
  • D. -CHO
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1945

In ethanol, the attractive forces between adjacent molecules are

  • A. covalent bonds only
  • B. hydrogen bonds only
  • C. hydrogen bonding and Van der Waal's forces
  • D. Van der Waal's forces only
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