Q.

The chemical used in enabalining biological materials is –

A. formaldehyde in water
B. formaldehyde in methanol
C. ethylene glycol
D. gaseous formaldehyde
Answer» A. formaldehyde in water
Explanation: Embalming fluids use formaldehyde as a preservative. Formaldehyde is the simplest aldehyde with the chemical formula HCHO. Formalin is a solution offormaldehyde in water, usually with a small amount of methanol added. Modern formaldehyde based embalming fluids are much kinder to the environment than those used in previous years.
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