Q. Which of the reactions will need the maximum amount of energy?
A. Na → Na+ + e–
B. Ca+ → Ca++ + e–
C. K+ → K+ ++ e–
D. C2+ → C3+ + e–
Answer: K+ → K+ ++ e–
A. Na → Na+ + e–
B. Ca+ → Ca++ + e–
C. K+ → K+ ++ e–
D. C2+ → C3+ + e–
Answer: K+ → K+ ++ e–