Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Help with type of carbohydrates for each test

| Test                | Observations          | Types of Carbohydrates    |
|---------------------|-----------------------|---------------------------|
| Benedict's Test     | brown-red             | glucose, fructose, and lactose |
| Seliwanoff's Test   | light pink            | lactose and starch        |
| Fermentation Test   | no bubbles            | lactose and starch        |
| Iodine Test         | orange, yellow-brown  | not poly                  |

This table summarizes the results of four different carbohydrate tests. The observations noted for each test indicate the presence of specific types of carbohydrates. 

- **Benedict's Test**: A color change to brown-red suggests the presence of glucose, fructose, and lactose.
- **Seliwanoff's Test**: A light pink color indicates the presence of lactose and starch.
- **Fermentation Test**: The absence of bubbles shows lactose and starch presence.
- **Iodine Test**: A change to orange or yellow-brown suggests that polysaccharides (starch) are not present.

These tests are used to differentiate and identify various carbohydrates based on their chemical reactions.
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Transcribed Image Text:| Test | Observations | Types of Carbohydrates | |---------------------|-----------------------|---------------------------| | Benedict's Test | brown-red | glucose, fructose, and lactose | | Seliwanoff's Test | light pink | lactose and starch | | Fermentation Test | no bubbles | lactose and starch | | Iodine Test | orange, yellow-brown | not poly | This table summarizes the results of four different carbohydrate tests. The observations noted for each test indicate the presence of specific types of carbohydrates. - **Benedict's Test**: A color change to brown-red suggests the presence of glucose, fructose, and lactose. - **Seliwanoff's Test**: A light pink color indicates the presence of lactose and starch. - **Fermentation Test**: The absence of bubbles shows lactose and starch presence. - **Iodine Test**: A change to orange or yellow-brown suggests that polysaccharides (starch) are not present. These tests are used to differentiate and identify various carbohydrates based on their chemical reactions.
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