Dr Mustafizur Rahman
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Posted 5 year ago
उत्कृष्ट गैस क्या है
1 Answer(s)
Meenakshi Hooda
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Posted 5 year ago Meenakshi Hooda

These are Noble gase which are inert.They are not chemically reactive.These are helium,Neon,Argon,Krypton,Xenon etc.