Answer to Question #55814 in General Chemistry for Misha Jain
Which of the following has different bond length and how:-
(a) Cl2O7 (b) O2 (c) H2O2 (d) CrO3
(1) a, d, c
(2) a, c, d
(3) a, b
(4) a, c
As we can see from structural formulas below, only Cl2O7 and H2O2 have two types of bonds: Cl-O and Cl=O for Cl2O7, and H-O and O-O for H2O2.
Thus, the right answer is (4) a,c.