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Which of the following are physical rather than chemical properties of hydrogen gas(H2)? Check all that applya. H2 gas does not conduct electricity.b. Liquefied H2 boils at a very low temperature (-253.7oC)c. It reacts vigorously with oxygen (O2) to form water.d. At room temperature, its density is less than that of any other gas

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Answer: a, b, d

Explanation:Physical property are measurable (or perceived) property of something observable without having to change the composition or identity of that thing.

Examples of physical properties in the context included in the question are the following: • Temperature • Solubility • Resistivity • Conductivity • Density

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