Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Assertion: Sodium carbonate is commonly used as an ingredient in antacid tablets. Reason: Sodium carbonate is a basic salt. Which of the following is correct?

Options

A. Both A and R are true, and R is the correct explanation of A
B. Both A and R are true, but R is not the correct explanation of A.
C. A is true, but R is false.
D. A is false, but R is true.

Answer

To solve the question, we need to analyze both the Assertion (A) and the Reason (R) provided.

### Step 1: Understand the Assertion
The assertion states that "Sodium carbonate is commonly used as an ingredient in antacid tablets." We need to evaluate if this statement is true or false.

**Analysis**:
- Antacid tablets are designed to neutralize stomach acid. Common ingredients in antacids include magnesium hydroxide, aluminum hydroxide, calcium carbonate, and sodium bicarbonate. Sodium carbonate (Na2CO3) is not typically used in antacid formulations because it is too alkaline and can cause gas and bloating.

**Conclusion**: The assertion is **false**.

### Step 2: Understand the Reason
The reason states that "Sodium carbonate is a basic salt." We need to evaluate if this statement is true or false.

**Analysis**:
- Sodium carbonate (Na2CO3) is formed from the reaction of a strong base (sodium hydroxide, NaOH) and a weak acid (carbonic acid, H2CO3). Since it is derived from a strong base, it is classified as a basic salt.

**Conclusion**: The reason is **true**.

### Step 3: Determine the Relationship between Assertion and Reason
Now we need to determine the relationship between the assertion and the reason. The assertion is false while the reason is true.

### Final Conclusion
Based on our analysis:
- Assertion (A) is false.
- Reason (R) is true.

Thus, the correct answer is that the Assertion is false, and the Reason is true.