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Which of the following is used in the preservation of biological specimens?

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a
CH3CHO
b
CH3COOH
c
CH3OCH3
d
HCHO

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detailed solution

Correct option is D

HCHO is used as a preservative Blood, urine, tissue, cells, saliva, and many more biological samples are among the biological samples, sometimes referred to as biological materials or biological specimens.

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