In an acidic indicator HIn has ionization constant is 10⁻⁸. The acid form of indicator is yellow and alkaline form is red. Which is correct statement?
Given: log(2)=0.3;log(3)=0.48
A. The pH range of indicator is 7 to 9.
B. Change in pH is 0.96 when 75% yellow colour change to 75% red colour.
C. This indicator is suitable for the titration of strong acid vs. strong base.
D. pH of indicator is 8.3 when ratio of acid form to alkaline form is 2.