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JAMB Chemistry 2001 Question 49

Question 49

Sulphur and its Compounds

C12H22O11(s) + H2SO4(aq) → 12C(s) + 11H2O(l) + H2SO4(aq)
In the reaction above, tetraoxosulphate (VI) acid functions as

  1. A.a dehydrating agent
  2. B.an oxidizing agent
  3. C.a reducing agent
  4. D.a catalyst
Show the answer and explanation

Answer: A (a dehydrating agent)

Explanation

Concentrated tetraoxosulphate (VI) acid removes the elements of water from sugar, leaving black carbon, so it acts as a dehydrating agent.