Question

Write the following ions in order of decreasing capacity to accept electrons.

$H^{+},Mg^{2 +}K^{+},Ag^{+},Zn^{2 +}$

• A. $Ag^{+} > H^{+} > Zn^{2 +} > Mg^{2 +} > K^{+}$
• B. $H^{+} > Zn^{2 +} > Mg^{2 +} > K^{+} > Ag^{+}$
• C. $K^{+} > Mg^{2 +} > Zn^{2 +} > H^{+} > Ag^{+}$
• D. $Mg^{2 +} > Zn^{2 +} > K^{+} > Ag^{+} > H^{+}$

Answer 1

Answer: (A)

$Ag^{+} > H^{+} > Zn^{2 +} > Mg^{2 +} > K^{+}$

Answer 2

: Based on the values of standard reduction potentials the sequence is followed.