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

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