Question

Match the salts in the Column-I with their use in Column-II.

Answer 1

Calomel electrode half cell reactions:

$H{g}_2^{2+}+2e^{-}\to 2Hg\left(l\right)$

$H{g}_{2}C{l}_2+2e^{-}\to 2Hg\left(l\right)+2C{l}^{-}$

Agar-agar is used in ice cream and salt bridge.

KCl is used in the salt bridge as an electrolyte.

Quinhydrone is a redox electrode.

Hydroquinone $\leftrightarrow$ Quinone $+2H^{+}+2e^{-}$