Question

Statement I : pH of 10^-8 M HCl is 8 at 25°C 

Statement II : Titration of weak acid & strong base at Half equivalence point gives pH = pKa/2 . 

(1) Statement I is correct and Statement II is correct 

(2) Statement I and II both are incorrect 

(3) Statement I is incorrect and Statement II incorrect 

(4) Statement I is correct and Statement II is incorrect

Answer 1

(2) Statement I and II both are incorrect 

10^-8 M HCl is acidic solution hence pH will be less than 7 at 25°C and incomplete titration of weak acid by strong base upto half equivalence point results in buffer with pH = pKa of weak acid.