Question

Which of the following compounds contains both ionic and covalent bonds?

[1] ClF

[2] SO2

[3] NaCl

[4] SO3

[5] NaCN

Answer 1

Sodium cyanide contains ionic bond between Na⁺ ion and CN^- ion. Also, there is a slightly polar covalent bond between carbon and nitrogen in CN^-. So, the correct answer is [5] NaCN.