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JAMB Chemistry 2009 Question 14

Question 14

Hydrogen, Oxygen and Oxides

Water can be obtained as the only product during the

  1. A.combustion of hydrocarbons
  2. B.neutralization of an acid by a base
  3. C.combustion of hydrogen
  4. D.electrolysis of brine
Show the answer and explanation

Answer: C (combustion of hydrogen)

Explanation

2H2 + O2 → 2H2O gives water alone; hydrocarbons also give CO2 and neutralization also gives a salt.