18. Which one of the following inert gases can accumulate in poorly ventilated buildings ?
(1) Argon
(2) Radon
(3) Helium
(4) Neon
Answers
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ANSWER
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THE ANSWER IS HELIUM
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THE ANSWER IS HELIUM
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Radon is the inert gas that accumulates in poorly ventilated buildings.
Explanation:
Radon is released from Radium. Radium is present in soil is also a common 'source' of 'radon gas'. It is also present in water and building material.
The gas is trapped inside the soil and after sometime it decays and released into the environment. In poorly ventilated buildings the gas could not find its way out so it gets trapped. It generally occurs in basement.
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