What is the term for the attraction between oppositely charged atoms or ions?

Explanation:

Q: What was the Vedic social class system called?
Ans: Varna

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Q: On January 16, 2025, which athletes were honored with the Khel Ratna Award 2025?
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Ans: Tripura

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Q: What has Delhi's 'Sarai Kale Khan Chowk' been renamed as?
Ans: Birsa Munda Chowk

Q: One-dimensional sinusoidal waves show the relationship among wavelength, frequency, and what?
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Q: 'Madhav National Park' has become the 9th Tiger Reserve of which state?
Ans: Madhya Pradesh

Q: What is considered to not be a form of precipitation?
Ans: fog

Q: Who hosted the 46th Antarctic Treaty Consultative Meeting?
Ans: India