Out of C and CO which is a better reducing agent for FeO
(i) In the lower part of blast furnace (higher temperature)
(ii) In the upper part of blast funace (lower temperature )

Explanation

To determine which is a better reducing agent between carbon (C) and carbon monoxide (CO) for ferrous oxide (FeO) in different parts of a blast furnace, we can analyze the conditions in both the lower and upper parts of the furnace.

### Step-by-Step Solution:

1. **Understanding the Reducing Agents**:
- A reducing agent is a substance that donates electrons to another substance, thereby reducing it. In this case, both carbon and carbon monoxide can reduce FeO to iron (Fe).

2. **Conditions in the Blast Furnace**:
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