Dissociation of an indicator can be considered as `Hln hArr H^(+)+ln^(-)`. Colour of Hln is P and `ln^(-)` is Q. Given the ratio of concentration of Hln to `ln^(-)` ranges from 10 to `1//10` then which of the following statements are correct.A. Solution assumes P colour, when `pH lepK_(ln-1)`B. Solution assumes P colour, when `pH ge pH _(ln-1)`C. Solution assumes Q colour , when `pH gepK_(ln-1)`D. Solution assumes Q colour , when `pH lepK_(ln-1)`

Dissociation of an indicator can be considered as `Hln hArr H^(+)+ln^(

1.	Dissociation of an indicator can be considered as `Hln hArr H^(+)+ln^(-)`. Colour of Hln is P and `ln^(-)` is Q. Given the ratio of concentration of Hln to `ln^(-)` ranges from 10 to `1//10` then which of the following statements are correct.A. Solution assumes P colour, when `pH lepK_(ln-1)`B. Solution assumes P colour, when `pH ge pH _(ln-1)`C. Solution assumes Q colour , when `pH gepK_(ln-1)`D. Solution assumes Q colour , when `pH lepK_(ln-1)`
Answer» Correct Answer - A,B,C Maximum pH to see distinct colour is `pK_(ln-1)` and minimum pH to see a colour is `pK_(ln+1)`

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