The reference electrode is made from which of the following?

Question

The reference electrode is made from which of the following? (A)  ZnCl2  (B)  CuSO4  (C)  Hg2Cl2  (D)  HgCl2

Tardigrade Admin · Accepted Answer

Calomel electrode is used as the secondary reference electrode and involves the following reaction at the cathode Hg 2 Cl 2( s )+2 e- longrightarrow 2 Hg (l)+2 Cl -

Q. The reference electrode is made from which of the following?

$Z n C l_{2}$

$C u S O_{4}$

$H g_{2} C l_{2}$

$H g C l_{2}$

Calomel electrode is used as the secondary reference electrode and involves the following reaction at the cathode
$H g_{2} C l_{2} (s) + 2 e^{-} ⟶ 2 H g (l) + 2 C l^{-}$

Q. The reference electrode is made from which of the following?

ZnCl2​

CuSO4​

Hg2​Cl2​

HgCl2​

Calomel electrode is used as the secondary reference electrode and involves the following reaction at the cathode Hg2​Cl2​(s)+2e−⟶2Hg(l)+2Cl−

$Z n C l_{2}$

$C u S O_{4}$

$H g_{2} C l_{2}$

$H g C l_{2}$

Calomel electrode is used as the secondary reference electrode and involves the following reaction at the cathode
$H g_{2} C l_{2} (s) + 2 e^{-} ⟶ 2 H g (l) + 2 C l^{-}$