Question
Which of the reactions will need the maximum amount of energy?
Options :
Na → Na⁺ + e⁻
Ca⁺ → Ca⁺⁺ + e⁻
K⁺ → K⁺⁺ + e⁻
C²⁺ → C3⁺ + e⁻
Answer :
K⁺ → K⁺⁺ + e⁻
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