Chemistry · Aldehydes, Ketones and Carboxylic Acids

Biological specimens are generally preserved in formalin. Formalin is an aqueous solution of:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Formic acid
2Ferric alum
3Ferrous sulphate
4Formaldehyde✓

Correct answer

Formaldehyde

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Biological specimens are generally preserved in formalin. Formalin is an aqueous solution of:

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