Question

which compound are used as indicator in fajans method?1.axin 2.sodium bicarbonate 3.sodium chloride 4.fluoresine​

Answer 1

Answer:

Fluoresine Is Used As Indicator

Answer 2

Fluorescein is used as an indicator in Fajan's method.

• Fajan's method is named after scientist Fajan.
• In this method, dichlorofluorescein is generally used as an indicator.
• The endpoint of the titration is marked by the change in the colour of the suspension from green to pink.
• At the endpoint of the titration, the chloride ion remains in excess quantity.
• Hence the correct option is 4.