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Which of the following are physical rather than chemical properties of hydrogen gas(H2)? - H2 gas does not conduct electricity. - Liquefied H2 boils at

Which of the following are physical rather than chemical properties of hydrogen gas(H2)?

- H2 gas does not conduct electricity.

- Liquefied H2 boils at a very low temperature (-253.7oC)

- It reacts vigorously with oxygen (O2) to form water.

- At room temperature, its density is less than that of any other gas

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