Sugar by the view point of chemistry is:

Options

A. Urea
B. Glucose
C. Fructose
D. Sucrose

Explanation

**Step-by-Step Solution:**

1. **Understanding Sugar**: In chemistry, sugar typically refers to a type of carbohydrate. The most common sugar that people refer to is table sugar.

2. **Identifying Table Sugar**: The chemical name for table sugar is sucrose. It is important to note that when we talk about sugar in a general sense, we are often referring to sucrose.

3. **Classifying Sucrose**: Sucrose is classified as a disaccharide. This means it is composed of two monosaccharide units.

4. **Composition of Sucrose**: The two monosaccharides that make up sucrose are glucose and fructose. Therefore, sucrose is formed by the combination of these two simpler sugars.

5. **Chemical Formula**: The chemical formula for sucrose is C12H22O11. This formula indicates that sucrose consists of 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms.

6. **Conclusion**: Based on the above points, the answer to the question "Sugar by the viewpoint of chemistry is" is sucrose.

**Final Answer**: Sucrose (option number 4).

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