The addition of hydrogen cyanide in formaldehyde gives which product?
Correct answer: C. Hydroxyacetonitrile
- A. 2-Hydroxypropanoic acid
- B. 2-Methy1propanenitrile
- C. Hydroxyacetonitrile
- D. 2-Hydroxypropane
Explanation
CH2O + HCN → HOCH2CN. The reaction of cyanide with formaldehyde results in the substitution of a hydrogen atom with the cyanide group resulting in the formation of a hydroxy nitrile.Another way is that the product must only have 2 carbon atoms 1 from formaldehyde and another from the cyanide molecule hence, it must be hydroxy acetonitrile as it has 2 carbon atoms. 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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