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2. Electrochemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry2. Electrochemistry1 Mark
MCQ
Which of the following has highest electrode potential
  • A
    $Li$
  • B
    $Cu$
  • ✓
    $Au$
  • D
    $Al$
✓

Answer

Correct option: C.
$Au$
c
$\text { Element: } \quad\quad\quad\quad\quad\quad Be \quad\quad\quad Mg \quad\quad Ca \quad\quad\quad Sr \quad\quad\quad Ba$

$\text { Electrode potential : }-1.70 \quad-2.37\quad -2.87\quad -2.89 \quad -2.90$

$Be$ has the highest electrode potential as it is the least electropositive among the given metals.

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