Ethyl Magnesium Bromide reacts with formaldehyde. The product will be:
Correct answer: C. Ethyl Alcohol
- A. Methyl Alcohol
- B. Acetone
- C. Ethyl Alcohol
- D. Ethane
Explanation
This reaction is a classic example of a Grignard reaction. Ethyl magnesium bromide (CH3CH2MgBr) is a Grignard reagent, which acts as a strong nucleophile. It attacks the carbonyl group of formaldehyde (HCHO), forming an alkoxide intermediate. This intermediate is then hydrolyzed to produce ethyl alcohol (CH3CH2OH).
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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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