Oligosaccharises are the compounds which give ....... monosaccharide molecules on acidic hydrolysis.

Explanation

**Step-by-Step Solution:**

1. **Definition of Oligosaccharides**: Oligosaccharides are carbohydrates that consist of a small number of monosaccharide units, typically ranging from 2 to 10 monosaccharides linked together by glycosidic bonds.

2. **Monosaccharide Units**: The term "oligosaccharides" indicates that these compounds are formed by the combination of two or more monosaccharides. Common examples include sucrose (composed of glucose and fructose), lactose (composed of glucose and galactose), and maltose (composed of two glucose units).

3. **Acidic Hydrolysis**: When oligosaccharides undergo acidic hydrolysis, they break down into their constituent monosaccharides. This process involves the addition of water (hydrolysis) in the presence of an acid, which cleaves the glycosidic bonds.

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