Assertion: The chemical properties of different isotope are same.
Reason: Isotopes having same number of neutron.

Options

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

Explanation

To solve the question, we need to evaluate both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states: "The chemical properties of different isotopes are the same."

- **Explanation**: Isotopes are atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons, which leads to different mass numbers. Since the chemical properties of an element are primarily determined by the number of electrons (which is equal to the number of protons in a neutral atom), and since isotopes have the same number of protons and electrons, their chemical properties will indeed be the same.

### Step 2: Analyze the Reason
The reason states: "Isotopes having the same number of neutrons."

- **Explanation**: This statement is incorrect. Isotopes of an element have the same number of protons but different numbers of neutrons. For example, in the case of hydrogen isotopes:
- H-1 (Protium) has 0 neutrons.
- H-2 (Deuterium) has 1 neutron.
- H-3 (Tritium) has 2 neutrons.

Thus, the reason provided is false because isotopes do not have the same number of neutrons; they have different numbers of neutrons.

### Step 3: Conclusion
Based on the analysis:
- The assertion is true.
- The reason is false.

Therefore, the correct option is that the assertion is true, but the reason is false.

### Final Answer
The correct answer is: Assertion is true, Reason is false.

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