Ionic Equilibrium Part 1

Consider the following statements
a) The pH of a mixture containing 400mL of 0.1M H2SO4 and 400 mL of 0.1M NaOH will be approximately 1.3
b) Ionic product of water is temperature dependent
c) A monobasic acid with Ka =10−5 has a pH = 5. The degree of dissociation of this acid is 50%
d) The Le Chatelier’s Principle is not applicable to common-ion effect
The correct statements are