Formalin, a solution containing formaldehyde, is commonly used for what purpose in laboratories and medical settings?

Explanation

Formalin, a water-based solution of the chemical compound formaldehyde, is widely used in laboratories and medical settings to preserve biological specimens and tissue samples by preventing decomposition and maintaining their structure for study or examination. This preservation works because formaldehyde reacts with proteins within the tissue, effectively halting the natural decay process. Due to its toxicity and status as a known irritant, formalin must be handled carefully and typically requires proper ventilation and protective equipment. Explore more Everyday Science MCQs on mcqstutor to keep practicing.