Which one of the following is used in making lozenges?
Correct answer: D. Formaldehyde
- A. Methanol
- B. Acetaldehyde
- C. Acetone
- D. Formaldehyde
Explanation
Formaldehyde is used in making lozenges because it acts as a preservative and helps to prevent the growth of bacteria and fungi. It is also used as a disinfectant and an embalming fluid.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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