Question

The electrolysis of which electrolyte gives the same products in the fused state as well as in the aqueous solution state?

• A. NaCl
• B. KCl
• C. AuCl${}_3$
• D. BaCl${}_2$

Answer 1

The correct option is C AuCl${}_3$

All have $C{l}^{-}$ ions, $\therefore C{l}_2$, is released at anode
The element with reduction potential > red. potential of $H^{+}$ will give same results for aqueous and molter states.
From the given options only $SRPofA{u}^{+}>SRPof{H}^{+}$
Hence, for other salts in their aqueous solutions $H^{+}$ gets reduced

Hence, option C is correct.