An acidtypeindicator , Hindiffers in colourfrom itsconjugatebase(In^(- – InterviewSolution

1.	An acidtypeindicator , Hindiffers in colourfrom itsconjugatebase(In^(-)). Thehumaneyeis sensitiveto colourdifferenceonly whenthe ratio[In^(-)] /[Hin]is greaterthan10 or smaller than0.1What shouldbe the minimum changein the pHof the solution to observea complete colourchange(K_() = 1.0 xx 10^(-5)) ?
Answer» SOLUTION :Changeon PH = 2

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