Assertion: `BeCi_(2)` cannot be easily hydrolysed.
Reason: `BeCl_(2)` is electron deficient compound.

Options

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

Explanation

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

### Step 1: Understanding the Assertion
The assertion states that "BeCl₂ cannot be easily hydrolyzed."

**Analysis**:
- Beryllium chloride (BeCl₂) is known for its covalent character and can react with water.
- Hydrolysis refers to the reaction of a compound with water to form other products.

### Step 2: Evaluating the Assertion
Based on chemical knowledge, BeCl₂ can actually undergo hydrolysis.

**Conclusion**:
- The assertion is **false** because BeCl₂ can be hydrolyzed when it reacts with water.

### Step 3: Understanding the Reason
The reason states that "BeCl₂ is an electron deficient compound."

**Analysis**:
- Electron deficiency in a compound typically means that it has a tendency to accept electrons to complete its octet.
- In the case of BeCl₂, beryllium has only 4 electrons in its outer shell and forms covalent bonds with chlorine atoms, which have 7 valence electrons. This leads to an electron-deficient state.

### Step 4: Evaluating the Reason
The reason provided is true as BeCl₂ is indeed electron deficient.

**Conclusion**:
- The reason is **true** because the electron deficiency of BeCl₂ contributes to its ability to hydrolyze.

### Final Conclusion
- The assertion is **false** while the reason is **true**. Therefore, the correct option is that the assertion is false but the reason is true.