M.Sc. Chemistry (PU-CET P.G) 2016 Panjab University Entrance Exam With Answers

Practice Mode:
13.

Which one of the following has highest CO stretching frequency ?

A: [Mn (CO) 6]^+1
B: [Fe(CO)4]^2-
C: [Cr(CO)6]
D: [V(CO)6]^-1

The answer is: A