- State of matter is a property of matter and includes ordered values of solid / liquid / gas
- Hydrogen is a kind of gas at room temperature
- Therefore, the state of matter of hydrogen is gas

- The state of matter of hydrogen is gas
- State of matter is a kind of physical property
- Therefore, being a gas is a physical property of hydrogen

So, being a gas is a physical property of hydrogen
Hydrogen is located on the left side of the periodic table in the same column as the alkali metals, but it has characteristics of a nonmetal. Which of the following is a physical property of hydrogen?
- State of matter is a property of matter and includes ordered values of solid / liquid / gas 
- Hydrogen is a kind of gas at room temperature 
- State of matter is a kind of physical property