Assertion : Glycosides are hydrolysed in acidic conditions.
Reason : Glycosides are acetals

Options

A. If the both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true and the reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false statements.

Explanation

To solve the question regarding the assertion and reason about glycosides, we will analyze both statements step by step.

### Step 1: Understanding Glycosides
Glycosides are compounds formed when a sugar (like glucose) reacts with an alcohol (such as methanol) in the presence of an acid (like HCl). This reaction leads to the formation of a glycosidic bond, which connects the sugar to the alcohol.

**Hint:** Recall that glycosides are formed from sugars and alcohols under acidic conditions.

### Step 2: Hydrolysis of Glycosides
Glycosides can be hydrolyzed under acidic conditions, meaning they can be broken down into their constituent sugar and alcohol when treated with a strong acid. This hydrolysis is a key characteristic of glycosides.

**Hint:** Remember that hydrolysis involves the addition of water and is facilitated by acids.

### Step 3: The Nature of Glycosides
Glycosides can be classified as hemiacetals or acetals. In the case of glycosides, they are more accurately described as hemiacetals because they contain one -OR group (from the alcohol) and one -OH group (from the sugar).

**Hint:** Differentiate between hemiacetals (one -OR and one -OH) and acetals (two -OR groups).

### Step 4: Evaluating the Assertion and Reason
- **Assertion:** "Glycosides are hydrolyzed in acidic conditions." This statement is **true** because glycosides can indeed be hydrolyzed when treated with acids.
- **Reason:** "Glycosides are acetals." This statement is **false** because glycosides are actually hemiacetals, not acetals.

### Conclusion
Since the assertion is true and the reason is false, the correct answer to the question is that the assertion is true, but the reason is not correct.

**Final Answer:** The assertion is true, and the reason is false.