Formalin is an aqueous solution of - Vidyadip

MCQ

Formalin is an aqueous solution of

A
Formic acid
✓
Formaldehyde
C
Fluorescein
D
Furfuraldehyde

✓

Answer

Correct option: B.

Formaldehyde

b
(b) Formaline contains $40\% \,HCHO,\,8\% \,C{H_3}OH$ and $52\%$ water.

It is used as biological preservative.

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