Question

Among the following species which two have trigonal pyramidal shape?
$\left(I\right)N{I}_3\left(II\right)I_3^{-}$
$\left(III\right)S{O}_3^{2-}\left(IV\right)N{O}_3^{-}$

• A. I and III
• B. III and IV
• C. I and IV
• D. II and III

Answer 1

Answer: (A)

Correct answer is (a) I and III