Question

In plasma, phenobarbital is present as ionized and unionized forms in equal amount because:-

• A. It is weakly acidic drug
• B. It is weakly basic drug
• C. pH of plasma is 6.8
• D. pKa of the phenobarbital is 7.4

Answer 1

The Correct Option is D

The correct answer is option (D) : pKa of the phenobarbital is 7.4