Q. Which of the following halides is most acidic?
A) $C{Cl}_{4}$
B) $PCl_{3}$
C) $BiCl_{3}$
D) $SbCl_{3}$
Explanation
(b)
In the Periodic Table, when one moves from left to right in a period, the acidity of oxides and halides of elements increases while it decreases when one moves from top to bottom in a group. Hence, ${PCl}_{3}$ is most acidic among given species.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.