2. structure of atom — Chemistry STD 11 Science — Question

$(a)$ Electron density in the $XY$ plane in $3d_x^2 - 3d_y^2$ orbital is zero

$(b)$ Electron density in the $XY$ plane in $3d_z^2$ orbital is zero

$(c)$ $2s$ orbital has one nodal surface

$(d)$ For $2pz$ orbital $YZ$ is the nodal plane.

Specify True or False.