SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A vapor is a gaseous substance that is a liquid at room temperature.
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Always True
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Sometimes True
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Never True
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None of the above
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Explanation:
Detailed explanation-1: -It is just a substance it is gaseous form. Vapor can turn back and convert into liquid and solid states but gas cannot.
Detailed explanation-2: -Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2).
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