Statement-1: Be imparts colour to the bunsen flame.
Statement-2: Be has very high ionisation energy.

Options

A. (a) Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1
B. (b) Statement-1 is true, statement-2 is true, statement-2 is not correct explanation for statement-1
C. (c) Statement-1 is true, statement-2 is false
D. (d) Statement-1 is false, statement-2 is true

Answer

To analyze the given statements about Beryllium (Be) and determine their truthfulness, we will break down the statements step by step.

### Step 1: Evaluate Statement 1
**Statement 1:** "Be imparts color to the Bunsen flame."

- Beryllium has an atomic number of 4, and its electron configuration is 1s² 2s².
- In order for an element to impart color to a flame, it must have unpaired electrons that can be excited to higher energy levels when heated.
- Since Beryllium has no unpaired electrons (both its 2s electrons are paired), it cannot impart any color to the Bunsen flame.

**Conclusion for Statement 1:** **False**

### Step 2: Evaluate Statement 2
**Statement 2:** "Be has very high ionization energy."

- Beryllium's outermost electrons are in the 2s subshell.
- Electrons in the s subshell are closer to the nucleus and experience a stronger attraction due to the positive charge of the nucleus.
- Additionally, Beryllium has a completed 2s subshell, which makes it more stable and requires a larger amount of energy to remove an electron.
- Therefore, Beryllium does indeed have a high ionization energy.

**Conclusion for Statement 2:** **True**

### Final Evaluation of Statements
- Statement 1 is **False**.
- Statement 2 is **True**.

### Conclusion
The correct option is **D**: Statement 1 is false, and Statement 2 is true.

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