• # question_answer Which of the following pair will have effective magnetic moment equal A) $C{{r}^{+3}}$ and $M{{n}^{+2}}$ B) $C{{r}^{+2}}$ and $F{{e}^{+2}}$ C) ${{V}^{+2}}$ and $S{{c}^{+3}}$ D) $T{{i}^{+2}}$ and ${{V}^{+2}}$

$C{{r}^{+2}}$ and $F{{e}^{+2}}$ $C{{r}^{+2}}\,-\,3{{d}^{4}}$ 4 unpaired electrons $F{{e}^{+2}}\,-\,3{{d}^{6}}$ 4 unpaired electrons