Question

end point colour in Mohr method
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Answer 1

Answer:

konsa subject hai aur konsa ch hai bata do

Answer 2

A reddish-brown precipitate is obtained at the endpoint in Mohr's method.

• Mohrs method is used for the estimation of chloride ions in a given sample.
• A chromate salt like potassium chromate, which is soluble in water is used as an indicator in this method.
• Silver nitrate reagent is used to estimate the concentration of chloride ions in the sample.
• The principle involves the precipitation of chloride ions in the sample as silver chloride.
• After the precipitation of all available chloride ions, the silver ions react with the chromate ion of the indicator to form a reddish-brown precipitate of the silver chromate.
• Thus the formation of silver chromate marks the endpoint of the titration indicating that all the chloride ions are consumed.