Which of the following structures shows the prevalent form o
Which of the following structures shows the prevalent form of histidine at pH 5?
The answer is C, I will need an explanation why A is not the anser and why is it C ?
HoN N NH HaN OH NH HaN HN NH HoN NHSolution
Answer is C. In the range 1.82 < pH < 6.02 of histidine,C is the dominant form.A is seen as dominant form in the range 6.02 < pH < 9.17.

