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Question

Noble gases or inert gases are so named because they are highly unreactive and do not form compounds under normal conditions. Which of these is not an inert gas?

A
Xenon
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B
Radon
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C
Oganesson
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D
Zirconium
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Solution

The correct option is A Zirconium
  • An inert gas is a gas that does not usually react chemically with other things. They are the most stable elements as they have maximum number of valence electrons in their outer shell.
  • Examples of inert gases are Argon, Neon, Xenon and Helium. They are often used in welding and sealing.

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