Assertion : Atomic number of the element ununbium is 112.
Reason : Name for digits 1 and 2 is un-and bi-respectively in latin words.

Options

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

Explanation

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

### Step 1: Analyze the Assertion
The assertion states that the atomic number of the element ununbium is 112.

- **Explanation**: Ununbium is the temporary systematic name for the element with atomic number 112. This name is derived from the Latin prefixes for the numbers 1 and 2, which are 'un' for 1 and 'bi' for 2. Therefore, the assertion is correct.

### Step 2: Analyze the Reason
The reason states that the names for the digits 1 and 2 are 'un' and 'bi' respectively in Latin.

- **Explanation**: In Latin, 'un' indeed represents the number 1, and 'bi' represents the number 2. This is a correct statement and supports the naming of ununbium.

### Step 3: Determine the Relationship
Now, we need to determine if the reason correctly explains the assertion.

- **Explanation**: Since the name "ununbium" is constructed using the Latin prefixes for 1 and 2, the reason does indeed provide a valid explanation for the assertion.

### Conclusion
Both the assertion and the reason are true, and the reason correctly explains the assertion.

### Final Answer
Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.

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