In Hill's experiment on Photosynthesis, potassium ferric oxalate is used as an acceptor of

Options

A. Oxygen
B. Hydrogen
C. Carbon
D. Nitrogen

Answer

### Step-by-Step Solution:

1. **Understanding Hill's Experiment**: Hill's experiment, conducted by Robin Hill in 1939, focuses on the process of photosynthesis, particularly the role of chloroplasts in plants.

2. **Role of Potassium Ferric Oxalate**: In this experiment, potassium ferric oxalate is used as an electron acceptor. This means it accepts electrons during the process of photosynthesis.

3. **Photochemical Splitting of Water**: During photosynthesis, water molecules are split into oxygen and hydrogen. This process is known as the photochemical splitting of water. The oxygen is released as a byproduct.

4. **Identifying the Acceptors**: The question asks what potassium ferric oxalate accepts. Since it is an electron acceptor, it specifically accepts electrons derived from the splitting of water.

5. **Conclusion**: Therefore, the correct answer to the question is that potassium ferric oxalate acts as an acceptor of hydrogen (H). This is because it accepts the electrons (which are associated with hydrogen) released during the photochemical splitting of water.

### Final Answer:
Potassium ferric oxalate is used as an acceptor of hydrogen in Hill's experiment on photosynthesis.

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