Which of the following structure(s) is/are non-planar?

CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures

Problem

Which of the following structure(s) is/are non-planar? (1)

Na_3B_3O_6

(2)

I_2Cl_6

(3) Sheet silicate (4) Inorganic graphite layer