Consider the following statements about the fermentation process. Which of them is not incorrect.I. CO2 is produced in all fermentation reactionsII. It is an endothermic processIII. Occurs at extremely low temperature

Explanation

If we examine the statements individually, starting with the first one, we know that for alcoholic fermentation, which is anaerobic respiration, pyruvate is decarboxylated to form ethanal and the removed carbon is released as CO2 marking the first statement correct. As fermentation is essentially respiration, it involves the release of heat energy making the process exothermic thus the second statement stands incorrect. As fermentation is an enzyme-influence reaction involving pyruvate decarboxylase, ethanol dehydrogenase, etc, the temperature must be near optimum and not too low to cease the activity of the enzymes making the third statement incorrect as well. Hence the answer is A as statement I is the only statement that is not incorrect.