Which of the following statements is/ are correct.
i. The ethylammonium ion, C2H5NH3+, has a pKa = 10.75
ii. The hypobromite ion, BrO - has a pKb = 8.55
iii. The weaker the weak acid, the stronger its conjugate base.
A. i only
B. ii only
C. iii only
D. i and ii
E. i and iii