Question

In salt bridge, KCl is used because-

Answer 1

Let me make u aware with the function of salt bridge

1. It completes the circuit

2. It helps to maintain liquid liquid junction potential

For maintaing liquid liquid junction potential the ionic mobilities of the cations and anions of electrolyte which is kept in salt brigde should be same for this the size of cation and anion should be comparable and KCl fits into this example, so we use it.

Hope it helps.

^_°

Answer 2

$\huge\mathfrak\red{Answer!!}$

✮KCl is used as salt bridge because it provides positive K+ ions and negative Cl- ions as the salt bridge needs to maintain the neutrality in the system by providing enough negative ions equal to the positive ions during oxidation.

@ɖɨʋǟռֆɦɨաǟɖɦաǟ❤️