Answers

2014-12-18T12:57:26+05:30
Using Fehling's test. Formaldehyde form red precipitate of cuprous oxide along with methanoic acid when fehling solution(alkaline solution of CuSO4 containing Na K tartarate) is added 2 it whereas benzaldehyde do not give fehling solution test as it is not a good reducing agent.
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2014-12-18T13:27:39+05:30
Using Fehling's test. Formaldehyde form red precipitate of cuprous oxide along with methanoic acid when fehling solution(alkaline solution of CuSO4 containing Na K tartarate) is added 2 it whereas benzaldehyde do not give fehling solution test as it is not a good reducing agent.
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