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1/125th part of nitorgen gas isolated fr...

1/125th part of nitorgen gas isolated from atmosphere did not combine with any other substance due to

A

The chemical inert ness of `N_2` gas

B

The presence of Argon

C

The presence of Argon & other noble gases

D

The presence of `O_2`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze why 1/125th part of nitrogen gas (N₂) isolated from the atmosphere did not combine with any other substances. ### Step-by-Step Solution: 1. **Understanding Nitrogen Gas**: - Nitrogen gas (N₂) is a diatomic molecule consisting of two nitrogen atoms. It is known for its strong triple bond, which makes it relatively inert under standard conditions. 2. **Bond Dissociation Energy**: - The bond between the two nitrogen atoms in N₂ is a triple bond, which has a very high bond dissociation energy. This means that a significant amount of energy is required to break this bond, making nitrogen gas less reactive. 3. **Presence of Noble Gases**: - The atmosphere contains various gases, including noble gases like argon (Ar). Noble gases are known for their chemical inertness due to their complete valence electron shell, which makes them unlikely to react with other elements or compounds. 4. **Combining Factors**: - The combination of the high bond dissociation energy of nitrogen and the presence of inert noble gases in the atmosphere contributes to the lack of reactivity of the isolated nitrogen gas. 5. **Conclusion**: - Therefore, the reason that 1/125th part of nitrogen gas did not combine with any other substance is primarily due to the presence of argon and other noble gases in the atmosphere, which are chemically inert. ### Final Answer: The correct answer is: **The presence of argon and other noble gases.**
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