A Feo is basic in character.
R: Oxides of Transition metals are basic when metal is in lower oxidation state

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the question regarding the assertion and reason about FeO and its basic character, let's break it down step by step:

### Step 1: Analyze the Assertion
The assertion states that "FeO is basic in character."
- **Explanation**: FeO (Iron(II) oxide) is indeed basic. This can be demonstrated through its reaction with an acid, such as hydrochloric acid (HCl). When FeO reacts with HCl, it produces iron(II) chloride (FeCl2) and water (H2O), which is characteristic of a base reacting with an acid.

### Step 2: Analyze the Reason
The reason states that "Oxides of transition metals are basic when the metal is in a lower oxidation state."
- **Explanation**: This statement is also correct. Transition metal oxides in lower oxidation states tend to exhibit basic properties because they can donate electron pairs. In contrast, transition metal oxides in higher oxidation states can accept electron pairs and behave as Lewis acids.

### Step 3: Connect Assertion and Reason
- The reason provided explains why FeO is basic. Since FeO is in the +2 oxidation state (a lower oxidation state), it can donate electron pairs and thus exhibits basic behavior. This aligns with the reason that oxides of transition metals are basic when in lower oxidation states.

### Step 4: Conclusion
Both the assertion and reason are true, and the reason correctly explains the assertion. Therefore, the correct answer to the question is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer
- **Assertion (A)**: True
- **Reason (R)**: True
- **Conclusion**: R is the correct explanation of A.