Which of the following statements is/are correct about real gases?

Options

A. The molecules do cause attractive forces on each another.
B. They obey gas laws at low temperature and high pressure.
C. They show deviations from ideal behaviour.
D. The molecules have negligible mass.

Explanation

To determine which statements about real gases are correct, we will analyze the properties of real gases and compare them to ideal gases.

### Step-by-Step Solution:

1. **Understanding Ideal Gases**:
- Ideal gases are defined as gases that perfectly follow the ideal gas law (PV = nRT) under all conditions of temperature and pressure.
- The molecules of an ideal gas are considered to have no volume and no intermolecular forces.

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