Statement I: All monosaccharides are sweet in taste.

Statement II: All monosaccharides have the general formula C₆H₁₂O_6.

Statement I is correct but Statement II is false

The correct answer is option 3. Statement I is correct but Statement II is false.

Statement I: All monosaccharides are sweet in taste.

Monosaccharides are simple sugars that consist of a single sugar unit. Many monosaccharides are indeed sweet when tasted. This sweetness is due to their molecular structure, which includes a ring or linear arrangement of carbon, hydrogen, and oxygen atoms that interact with taste receptors on the tongue.

Examples of sweet monosaccharides include glucose, fructose, and galactose, which are commonly found in fruits and honey.

Statement II: All monosaccharides have the general formula \(C_6H_{12}O_6\).

This statement is incorrect. While some common monosaccharides like glucose and fructose do have the molecular formula \(C_6H_{12}O_6\), not all monosaccharides share this formula. Monosaccharides are classified based on the number of carbon atoms they contain, which can vary. For instance:

Glucose, fructose, and galactose have 6 carbon atoms and conform to \(C_6H_{12}O_6\).

Ribose, a 5-carbon monosaccharide found in RNA, has the formula \(C_5H_{10}O_5\).

Glyceraldehyde, a 3-carbon monosaccharide involved in carbohydrate metabolism, has the formula \(C_3H_6O_3\).

Therefore, while \(C_6H_{12}O_6\) is a common formula for many monosaccharides, it does not apply universally to all monosaccharides.

Conclusion:

Statement I: All monosaccharides are sweet in taste is true.

Statement II: All monosaccharides have the general formula \(C_6H_{12}O_6\) is false because not all monosaccharides share this formula; their formulas can vary depending on their structure and number of carbon atoms.