Which of the following statements is/are correct?

Options

A. Absolute value of internal energy cannot be determined
B. Absolute value of heat content can be determined
C. Absolute value of entropy can be determined
D. All the three E, H and S are extensive properties.

Explanation

To determine which statements regarding H3PO2 (phosphorous acid) are correct, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding H3PO2**:
- H3PO2 is known as phosphorous acid. It is important to note its structure and properties.
- H3PO2 has one hydroxyl group (-OH) attached to the phosphorus atom, which makes it a monobasic acid. This means it can donate one proton (H+) in a reaction.

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