4. Titarant in Mohr 's method is 1) AgNO_(3) solution; 2) KSCN solution: 3) Hg_(2)(NO_(3))_(2) solution; 4) NaCl solution 5) K_(4)[Fe(CN)_(6) solution Explain your answer. Provide theoretical/practical information as much as you can (examples,, chemicals reactions, etc.)

The correct answer is 1) solution.In Mohr's method, the titrant used is solution. This method is commonly employed for the determination of chloride ions in a solution. The reaction between the chloride ions and the solution forms a precipitate of silver chloride (AgCl), which can be measured to determine the concentration of chloride ions in the original solution.The reaction can be represented as follows: The formation of the AgCl precipitate indicates the endpoint of the titration, and the amount of chloride ions present can be calculated based on the amount of solution used.