Question

Which of the following is a fermentation product of molasses?
A. Methanol
B. Formaldehyde
C. Ammonia
D. Acetone

Answer 1

Molasses is a thick sweetener obtained as a byproduct of the sugar-making process that comes from crushed sugarcane or sugar beets. The process of preparation of molasses includes crushing of the sugar cane or sugar beet to extract the juice and then boiling off the juice is done to obtain sugar crystals, molasses is the thick brown syrup obtained as the end product in the vessel after the crystals are removed from the juice.

Complete answer:
Molasses is used for the growth of various yeast and bacteria that can convert sugar into alcohol, the alcohol present in the above-mentioned option is methanol, so option A is the correct option.

Formaldehyde can be obtained from the fermentation of methanol, not from the molasses, hence option B is incorrect.

Ammonia cannot be obtained by the method of fermentation,
hence option C is incorrect.

Acetone is the product obtained from glucose under the action of Clostridium butyricum through the mode of anaerobic fermentation(produces organic acids, gases, or alcohol under the anaerobic conditions) by the process named Acetone-Butanol-Ethanol (ABE) fermentation. But it is not obtained as a product when molasses is fermented.
hence option D is incorrect.

Note:
Methanol is used in the production of formaldehyde, acetic acid, and hydrocarbons (by condensation). It also acts as a prominent energy carrier, occasionally used in the form of fuel (burns to form Carbon dioxide and water). It is also used as a destaining agent in polyacrylamide gel electrophoresis, wastewater treatment plants, solvents, and as an antifreeze in pipelines.