M.Sc. Chemistry (PU-CET P.G) 2021 Panjab University Entrance Exam With Answers

Practice Mode:
25.

Which of the following represents a set of hard acid and soft base respectively?

A: Mg^+, O2^2-
B: Mg^2+, SR-
C: BF3, F-
D: BF3, H2O

The answer is: B