Question

Given:
$E\degree_{K^+/K}=-2.93V,$
$E\degree_{Ag^+/Ag}=0.80V,$
$E\degree_{Hg^{2+}/Hg}=0.79V,$
$E\degree_{Mg^{2+}/Mg}=-2.37V,$
$E\degree_{Cr^{3+}/Cr}=-0.74V,$
Choose the correct order :
(A) Ag <Hg< Cr <Mg <K (increasing reducing power)
(B) Ag <Hg< Cr <Mg <K (decreasing oxidising power)
(C) Ag > Hg > Cr > Mg > K (decreasing oxidising power)
(D) Hg > Cr > Ag > K > Mg (increasing reactivity)
(E) K > Mg > Cr > Hg > Ag (decreasing reactivity order)
Choose the correct answer from the options given below:

• A. (A), (C) and (E) only
• B. (B), (C) and (E) only
• C. (C), (D) and (E) only
• D. (A) and (B) only

Answer 1

Answer: (A)

(A), (C) and (E) only

Answer 2

The correct option is (A) : (A), (C) and (E) only