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How do you test for starch or carbohydrate?

Answer:

take 3cm cubed of the carbohydrate and put in a test tube with 5cm cubed of benedict's reagent. If the carbohydrate is a reducing sugar the solution would turn red. If it contains a non- reducing sugar the solution would remain blue.

Then take the non-reducing sugar boil it with dilute hydrochloric acid, cool it and neutralise it with sodium hydrogencarbonate and retest with benedict's reagent if the soultion turns red it means the non- reducing sugar has been hydrolysed to its monomers.If it remains blue there is no reducing sugar present.

First answer by ID2083207567. Last edit by ID2083207567. Question popularity: 13 [recommend question].

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Relevant answers:

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