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The set that contains atomic number of only transition element is - (1) 21, 32, 53, 64 (2) 21, 25, 42, 72 (3) 9, 17, 34, 38 (4) 37, 42, 50, 64 |
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Answer» Correct answer is (2) 21, 25, 42, 72 |
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