Question

which chemicals are used for preparation of salt bridge?​

Answer 1

Answer:

potassium nitrate

Explanation:

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Answer 2

A salt bridge is a device used in an electrochemical cell for connecting its oxidation and reduction half cells wherein a weak electrolyte is used. In other words, a salt bridge is a junction that connects the anodic and cathodic compartments in a cell or electrolytic solution. Sodium Chloride (NaCl), Potassium Chloride (KCl), Potassium Nitrate (KNO3) is generally used chemicals electrolyte.