Which of the following are isostructural pairs ? A. $SO_4^{2 - }$ and $CrO_4^{2 - }$ B. SiCl4, and TiCl4 C. NH3 and NO3- D. BCl3 and BrCl3

Question

Which of the following are isostructural pairs ?

A. $SO_4^{2 - }$ and $CrO_4^{2 - }$

B. SiCl₄, and TiCl₄

C. NH₃ and NO₃^-

D. BCl₃ and BrCl₃

B and C only