Assertion: Isotopes of an element can be separated by using a mass spectrometer.
Reason: Separation of isotopes is possible because of difference in electron numbers of isotope.

Options

A. Statement-1 is True , Statement-2 is True ,Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True , Statement-2 is True ,Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True , Statement-2 is False
D. Statement-1 is False, Statement-2 is True

Answer

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

### Step 1: Analyze the Assertion
**Assertion:** Isotopes of an element can be separated by using a mass spectrometer.

- **Explanation:** A mass spectrometer is an analytical device that measures the mass-to-charge ratio of ions. Isotopes of an element have the same atomic number (same number of protons) but different mass numbers (different numbers of neutrons). This difference in mass allows mass spectrometers to separate isotopes based on their mass-to-charge ratios.

### Step 2: Analyze the Reason
**Reason:** Separation of isotopes is possible because of difference in electron numbers of isotopes.

- **Explanation:** This statement is incorrect. Isotopes of an element have the same number of electrons because they have the same atomic number. The separation of isotopes is not due to differences in electron numbers but rather due to differences in their mass numbers.

### Step 3: Conclusion
- The assertion is **true** because isotopes can indeed be separated using a mass spectrometer.
- The reason is **false** because the separation is not based on differences in electron numbers, but rather on differences in mass.

### Final Answer
The correct conclusion is that the assertion is true, but the reason is false. Therefore, the answer is that the assertion is correct, and the reason is incorrect.

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