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Which chemical test is used to distinguish between an alkanal and an alkanone?
  • a)
    Tollen's test
  • b)
    Baeyer's test
  • c)
    Schiff's test
  • d)
    Fehling's test
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which chemical test is used to distinguish between an alkanal and an a...
Fehling's test is commonly used to distinguish between alkanals (aldehydes) and alkanones (ketones). It involves the reaction of the carbonyl group with copper(II) ions, resulting in the formation of a colored precipitate.
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Which chemical test is used to distinguish between an alkanal and an a...


Explanation:

Fehling's Test:
- Fehling's test is used to distinguish between an alkanals (aldehydes) and alkanones (ketones).
- In this test, Fehling's solution is a blue solution that contains copper ions complexed with tartrate ions.
- Aldehydes are oxidized by Fehling's solution to form carboxylic acids, while ketones do not react.
- The alkanal will reduce the Cu2+ ions in Fehling's solution to Cu+ ions, resulting in the formation of a brick-red precipitate of copper(I) oxide.
- Alkanones do not have the reactive hydrogen atom needed for this reaction to occur.

Therefore, the Fehling's test is used to distinguish between alkanals and alkanones based on their ability to reduce Cu2+ ions in Fehling's solution.
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Which chemical test is used to distinguish between an alkanal and an alkanone?a)Tollens testb)Baeyers testc)Schiffs testd)Fehlings testCorrect answer is option 'D'. Can you explain this answer?
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