Which of the following is incorrect for transition metals?
(359)
(1) Oxidation states of Mn are 2, 4, 6 and 7
(2) Transition metal ions exhibit variable valencies
(3) 3d 4 4s2 is the other electronic configuration of chrom
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Answer is no. 2. Please make me brianliest
bittukohli:
explain plz
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