Question

Which of the following species, is planar?

• A. $C{O}_3^{2-}$
• B. $N{H}_3$
• C. $PC{l}_3$
• D. None of these

Answer 1

Answer: (A)

$N{H}_3$ has pyramidal geometry and $PC{l}_3$ also has pyramidal geometry. While $C{O}_3^{2-}$ ion is trigonal planar.