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JAMB UTME Chemistry 2014 past questions and answers

This 2014 JAMB UTME Chemistry set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2014 set with instant marking.

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Sample JAMB UTME Chemistry 2014 questions

1. When ethene is shaken with bromine water, what is the main organic product?
  1. 1,2-dibromoethane
  2. Bromoethane
  3. Ethane
  4. Ethanol

Answer: A. 1,2-dibromoethane

Bromine adds across the carbon-carbon double bond in ethene to form 1,2-dibromoethane.

2. How many structural isomers does C4H10 have?
  1. 1
  2. 2
  3. 3
  4. 4

Answer: B. 2

C4H10 has the straight-chain isomer butane and the branched isomer 2-methylpropane.

3. Which product is obtained when ethanol is gently oxidized and distilled off as it forms?
  1. Ethanoic acid
  2. Ethene
  3. Ethanal
  4. Methanal

Answer: C. Ethanal

Controlled oxidation of a primary alcohol such as ethanol produces the aldehyde ethanal.

4. Which pair of reactants produces ethyl ethanoate and water in an acid-catalysed reaction?
  1. Methanol and propanoic acid
  2. Ethanol and methanoic acid
  3. Ethene and water
  4. Ethanol and ethanoic acid

Answer: D. Ethanol and ethanoic acid

Ethanol reacts with ethanoic acid in esterification to form ethyl ethanoate and water.

5. What is the major product when but-1-ene reacts with steam in the presence of an acid catalyst?
  1. Butan-2-ol
  2. Butan-1-ol
  3. Butanal
  4. Butanoic acid

Answer: A. Butan-2-ol

Acid-catalysed hydration of but-1-ene adds the hydroxyl group mainly to carbon 2, producing butan-2-ol.

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