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Tina Singh • 10.59K Points
Tutor II Science
515

Q. किस तत्व को रसायन में अवारा तत्व की संज्ञा दी गई है ?

(A) ऑक्सीजन
(B) नाइट्रोजन
(C) हाइड्रोजन
(D) कार्बन
Correct Answer - Option (C)

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