The reagent used to distinguish between ethanal and propanal is:
Correct answer: A. I2/NaOH
- A. I2/NaOH
- B. LiAIH4
- C. Benedict's reagent
- D. sodium nitroprusside
Explanation
The reagent used to distinguish between ethanal and propanal is 1/2 NaOH, which stands for half molar concentration of sodium hydroxide. It helps in differentiating between the two aldehydes based on their solubility and formation of respective salts.
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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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