Multiple choice

Which of the following chemical compounds known only in solution?

  1. Disulphuric acid

  2. Disulphurous acid

  3. Dithionic acid

  4. Dithionous acid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dithionic acid, H2S2O6, is a chemical compound known only in solution. It is dibasic and salts called dithionates are known. No acid salts have been discovered. All dithionates are readily soluble in water. They are mild oxidizing and mild reducing agents.

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