1. Tardigrade
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  3. Chemistry
  4. Which of the following compounds twould give the following set of qualitative analysis? (i) Fehling's Test: Positive (ii) Na fusion extract upon treatment with sodium nitroprusside gives a blood red colour but not prussian blue.

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Q. Which of the following compounds twould give the following set of qualitative analysis?
(i) Fehling's Test : Positive
(ii) Na fusion extract upon treatment with sodium nitroprusside gives a blood red colour but not prussian blue.

JEE MainJEE Main 2023Aldehydes Ketones and Carboxylic Acids

Solution:

Aromatic aldehydes do not give Fehling's test.. Both nitrogen and sulfur must be present to obtain blood red colour Sodium nitroprusside gives blood red colour with S & N.