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Which of the following statements is false ? [1994]
- a)Radon is obtained from the decay of radium
- b)Helium is inert gas
- c)Xenon is the most reactive among the rare gases
- d)The most abundant rare gas found in the atmosphere is helium
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following statements is false ? [1994]a)Radon is obtained...
The most abundant rare gas found in the atmosphere is argon and not helium.
Most Upvoted Answer
Which of the following statements is false ? [1994]a)Radon is obtained...
False Statement:
The most abundant rare gas found in the atmosphere is helium. (Option D)
Explanation:
To determine the false statement among the given options, let's analyze each statement one by one:
a) Radon is obtained from the decay of radium:
This statement is true. Radon is a radioactive gas that is formed as a result of the decay of radium. Radium undergoes a series of radioactive decays, ultimately leading to the formation of radon.
b) Helium is inert gas:
This statement is true. Helium is classified as an inert gas because it has a stable electronic configuration with a complete outermost energy level. It does not readily react with other elements, making it chemically inert.
c) Xenon is the most reactive among the rare gases:
This statement is false. Xenon is actually the least reactive among the rare gases. Rare gases, also known as noble gases, are characterized by their low reactivity due to their stable electronic configurations. Xenon is particularly known for its low reactivity and is often used in lighting applications.
d) The most abundant rare gas found in the atmosphere is helium:
This statement is false. The most abundant rare gas found in the atmosphere is actually argon, not helium. Argon makes up about 0.93% of the Earth's atmosphere, making it the most abundant rare gas. Helium, on the other hand, is present in much smaller quantities and is only about 0.00052% of the atmosphere.
Therefore, the false statement is option D: The most abundant rare gas found in the atmosphere is helium.
The most abundant rare gas found in the atmosphere is helium. (Option D)
Explanation:
To determine the false statement among the given options, let's analyze each statement one by one:
a) Radon is obtained from the decay of radium:
This statement is true. Radon is a radioactive gas that is formed as a result of the decay of radium. Radium undergoes a series of radioactive decays, ultimately leading to the formation of radon.
b) Helium is inert gas:
This statement is true. Helium is classified as an inert gas because it has a stable electronic configuration with a complete outermost energy level. It does not readily react with other elements, making it chemically inert.
c) Xenon is the most reactive among the rare gases:
This statement is false. Xenon is actually the least reactive among the rare gases. Rare gases, also known as noble gases, are characterized by their low reactivity due to their stable electronic configurations. Xenon is particularly known for its low reactivity and is often used in lighting applications.
d) The most abundant rare gas found in the atmosphere is helium:
This statement is false. The most abundant rare gas found in the atmosphere is actually argon, not helium. Argon makes up about 0.93% of the Earth's atmosphere, making it the most abundant rare gas. Helium, on the other hand, is present in much smaller quantities and is only about 0.00052% of the atmosphere.
Therefore, the false statement is option D: The most abundant rare gas found in the atmosphere is helium.
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Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer?.
Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer?.
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Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following statements is false ? [1994]a)Radon is obtained from the decay of radiumb)Helium is inert gasc)Xenon is the most reactive among the rare gasesd)The most abundant rare gas found in the atmosphere is heliumCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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