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Class 12 Chemistry Practice Test: Group 18 Elements
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Class 12 Chemistry Practice Test: Group 18 Elements
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15 Questions

1. Which of the following noble gases do not occur in the elemental state in the atmosphere?
2. Which of the following noble gases is most soluble in water?
3. Which of the following statements is incorrect about noble gases?
4. What is the electron gain enthalpy for noble gases?
5. Which of the following noble gases is not obtained via fractional distillation?
6. What is the boiling point of Helium?
7. What is the half-life of radon?
8. Which among the following noble gases does not form clathrates?
9. Which of the following noble gases can diffuse through rubber?
10. Which of the following scientists first discovered helium in the solar spectrum during a total solar eclipse?
11. Which of the following is the second most abundant noble gas in the atmosphere?
12. What is the ratio of the molar heat at constant pressure to the molar heat at constant volume for a noble gas?
13. What are the decay products of radium?
14. Helium is the second most abundant gas in the universe.
15. The main commercial source of helium is natural gas.

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