Question

Formalin, a disinfectant is used to preserve biological specimens.

If this is true enter 1, if false enter 0.

• A. 1

Answer 1

The correct option is A 1

Formaldehyde is an aldehyde compound that is a gas at elevated temperatures and solid at room temperatures. Its mode of action involves the inactivation of proteins.

In gaseous form, it is used to disinfect the interior and furniture room. A $37\%$ aqueous solution of formaldehyde, known as formalin, is used to preserve biological specimens. It is also used to inactivate bacteria and viruses in the preparation of vaccines and in the synthesis of toxoids from toxins.