Question

6. Compound used in preservation of biological specimens?
a) Acetic acid
b) Formic anhydride
c) Methoxy ethane
c) Formaldehyde​

Answer 1

Formaldehyde

Explanation:

A solution of 35 to 40 per cent of water in formaldehyde or methanal is called formalin. Formaldehyde's formula is HCHO. As formalin is a strong disinfectant and tissue hardener, it's used for preserving biological and anatomical specimens

Answer 2

Explanation:

the answer is Formaldehyde