The chemical used in embalming biological materials is

A Formaldehyde in water
B Formaldehyde in methanol<br>
C Ethylene glycol
D Gaseous formaldehyde

Correct Answer: Formaldehyde in water

Embalming fluids use formaldehyde as a preservative. Formaldehyde is the simplest aldehyde with the chemical formula HCHO. Formalin is a solution of formaldehyde in water, usually with a small amount of methanol added. It is widely used as an antiseptic, disinfectant and preservative for biological materials.
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