Question

Dead organs are generally stored in formalin. Formalin is?
A. aqueous formaldehyde B. aqueous formic acid C. aqueous ferric alum D. aqueous ferrous sulphate

Answer 1

Answer:

option A

Explanation:

simply it is 40% formaldehyde solution called as. FORMALIN

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Answer 2

Option A is the correct answer.

Formalin is a 37% aqueous solution of formaldehyde, a pungent gas, with the chemical formula HCHO, borrowed as an antiseptic, disinfectant, and primarily today as a fixative for histology means the investigation of tissues under the microscope.

• When formaldehyde is decomposed in water, it is named formalin. This formalin is borrowed as a disinfectant in industries, preservative in some food commodities etc.
• Formaldehyde strengthens tissues. The natural manifestation of the colour and texture of the tissue is generally rapidly and the specimen solutions become cloudy.
• Formalin must be diluted with water before it is borrowed as a preservative. A strength of 10% formalin is best for most objectives. If the initial stability is 40%, it should be stirred at a percentage of nine parts water to one part formalin.

Hence, option A is the correct answer.

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