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The gas evolved when dilute tetraoxosulphate (VI) acid reacts with sodium hydrogen trioxocarbonate (IV) is

Chemistry
WAEC 2000

The gas evolved when dilute tetraoxosulphate (VI) acid reacts with sodium hydrogen trioxocarbonate (IV) is

  • A. hydrogen
  • B. oxygen
  • C. carbon (IV) oxide
  • D. sulphur (VI) oxide
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Correct Answer: Option C
Explanation

Whenever Acids react with carbonate salts to produce carbon(iv) oxide (CO2), water, and a salt:

           Acid + carbonate → salt + water + carbon(iv) oxide.

In other words whenever ac acid reacts with a carbonate salt, CO2 gas is always given off or liberated. The correct answer is option C

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