Formaldehyde polymerizes to form?
Correct answer: C. Meta-formaldehyde
- A. Bakelite
- B. Paraldehyde
- C. Meta-formaldehyde
- D. All of these
Explanation
Under acidic conditions, formaldehyde polymerizes to form meta-formaldehyde, which is a cyclic structure comprising 3 formaldehyde molecules. Therefore, option c is correct.
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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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