a
Fe\(^{3+}\) and Mg\(^{2+}\)
b
Ca\(^{2+}\) and Mg\(^{2+}\)
c
Fe\(^{2+}\) and Fe\(^{3+}\)
d
Na\(^{+}\) and Ca\(^{2+}\)
Explanation
Correct Option
bVideo Explanation
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Fe\(^{3+}\) and Mg\(^{2+}\)
Ca\(^{2+}\) and Mg\(^{2+}\)
Fe\(^{2+}\) and Fe\(^{3+}\)
Na\(^{+}\) and Ca\(^{2+}\)
