Multiple choice

Which of the following is a byproduct of wine making?

  1. Potassium bitartrate

  2. Potassium hydrogen sulphite

  3. Potassium bisulphate

  4. Potassium bicarbonate

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A Correct answer
Explanation

Potassium bitartrate, also known as potassium hydrogen tartrate, has formula KC4H5O6. It is a byproduct of winemaking. In cooking, it is known as cream of tartar. It is a potassium acid salt of tartaric acid, a carboxylic acid (the other being potassium tartrate).