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1.due to their characteristic crystalline appearance

2.due to their definite melting point

3.due to the length of time for the crystals to form

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  1. The Osazone test is specific to sugars containing a carbonyl group, such as aldoses and ketoses, making it useful for their identification.
  2. The formation of crystalline derivatives (osazones) provides a visual confirmation of the presence of specific sugars in a sample.
  3. The characteristic melting point of osazones can help differentiate between different types of sugars based on their chemical structure.
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Q: 3reasons why the osazone test can be used in the identification of sugars?
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3 reasons why the osazone test can be used in identification of sugars?

The osazone test can help identify the specific type of sugar present in a sample by forming distinct crystals with characteristic shapes and colors. It is a simple and reliable method that can distinguish between different sugars based on their unique osazone derivatives. The test is sensitive and can detect even small amounts of sugars, making it useful in various applications such as food science and biochemistry.


How many phenylhydrazines are required in osazone reaction?

Two phenylhydrazines are typically required in the osazone reaction, which is a chemical test used for identifying and characterizing reducing sugars. In this reaction, the aldehyde or ketone group of the sugar reacts with phenylhydrazine to form a crystalline osazone derivative.


Osazone test for carbohydrates?

The Osazone test is a chemical test used to detect the presence of reducing sugars like glucose, fructose, and maltose in a carbohydrate sample. During the test, the reducing sugar reacts with phenylhydrazine to form a crystalline compound known as an osazone. This compound can then be visually identified under a microscope to confirm the presence of reducing sugars in the sample.


Why maltose gives sunflower shaped crystals in osazone test?

Maltose forms sunflower-shaped crystals in the osazone test because its structure allows for multiple hydroxyl groups to participate in the reaction with phenylhydrazine. The specific arrangement of these hydroxyl groups on maltose leads to the formation of complex crystalline structures, giving rise to the characteristic sunflower appearance.


Conclusion for non reducing sugars test?

The non-reducing sugars test is negative if there is no color change after performing the test. This indicates the absence of non-reducing sugars such as sucrose in the sample.