Collodion is 4% solution of which one of the following in alcohol-ethe...
**Collodion:**
Collodion is a liquid preparation that is mainly used in medicine and photography. It is a solution of nitrocellulose in a mixture of alcohol and ether. When applied to the skin, collodion forms a flexible film that can be used for wound dressings or as a protective covering.
**Composition:**
Collodion is composed of a 4% solution of a specific substance in an alcohol-ether mixture. The correct answer is option D, nitrocellulose. Nitrocellulose is a highly flammable compound that is produced by nitrating cellulose with a mixture of nitric acid and sulfuric acid. It is commonly used in the production of explosives, lacquers, and films.
**Explanation:**
Nitrocellulose is the correct answer because it is the main ingredient in collodion. When nitrocellulose is dissolved in an alcohol-ether mixture, it forms a solution that can be easily applied to the skin. The alcohol and ether in the mixture help to dissolve the nitrocellulose and create a liquid solution.
When the collodion is applied to the skin, the alcohol and ether quickly evaporate, leaving behind a thin film of nitrocellulose. This film provides a protective barrier and helps to seal wounds. It can also be used as a base for applying medications or other substances to the skin.
**Other Options:**
The other options, nitroglycerin, cellulose acetate, and glycol dinitrate, are not correct answers because they are not commonly used in the preparation of collodion.
- Nitroglycerin: Nitroglycerin is a highly explosive compound that is used in the production of dynamite and as a medication for heart conditions. It is not commonly used in the preparation of collodion.
- Cellulose acetate: Cellulose acetate is a derivative of cellulose that is used in the production of films, fibers, and coatings. While it is similar to nitrocellulose, it is not commonly used in the preparation of collodion.
- Glycol dinitrate: Glycol dinitrate is an explosive compound that is used as a stabilizer in the production of dynamite. It is not commonly used in the preparation of collodion.
Therefore, the correct answer is option D, nitrocellulose.
Collodion is 4% solution of which one of the following in alcohol-ethe...
Nitrocellulose when dissolved in 4% alcohol-ether mixture is called collodion