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Lobry de Bruyn-von Ekenstein Transformation

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Lobry de Bruyn-von Ekenstein Transformation

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Questions and Answers

Why are sugars in alkaline solution considered powerful reducing agents?

Due to the presence of free aldehyde or keto groups

Due to the formation of enediol intermediates

Due to their ability to reduce cupric ions (Cu²⁺) to cuprous ions (Cu⁺)

All of the above (correct)

What is the common intermediate formed in the Lobry de Bruyn-von Ekenstein transformation for D-glucose, D-fructose, and D-mannose?

Ketone

Carboxylic acid

Enediol (correct)

Aldehyde

What is the product formed when the aldehyde group of glucose is oxidized?

Glucuronic acid

Glucaric acid

Gluconic acid (correct)

Glucose-6-phosphate

Which of the following tests is NOT mentioned in the text for identifying the reducing action of sugars?

Tollens' test Signup and view all the answers

Which of the following statements is TRUE regarding the reducing property of sugars?

It is a general reaction and cannot be used for specific identification of sugars. Signup and view all the answers

In the reaction showing the reduction of cupric ions (Cu²⁺) by sugars, what is the product formed?

Both cuprous hydroxide and cuprous oxide are formed Signup and view all the answers

Lobry de Bruyn-von Ekenstein Transformation

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Podcast

Questions and Answers

Why are sugars in alkaline solution considered powerful reducing agents?

What is the common intermediate formed in the Lobry de Bruyn-von Ekenstein transformation for D-glucose, D-fructose, and D-mannose?

What is the product formed when the aldehyde group of glucose is oxidized?

Which of the following tests is NOT mentioned in the text for identifying the reducing action of sugars?

Which of the following statements is TRUE regarding the reducing property of sugars?

In the reaction showing the reduction of cupric ions (Cu²⁺) by sugars, what is the product formed?

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