Class 12 NEET Chemistry D And F Block Elements Questions
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Question : 56 of 110
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Which of the following ions has electronic configuration [ A r ] 3 d 6
(At. nos. Mn = 25, Fe = 26, Co = 27, Ni = 28)
(At. nos. Mn = 25, Fe = 26, Co = 27, Ni = 28)
(2010)
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