Square planar complexes with a coordination number four exhibit geometrical isomerism whereas tetrahedral complexes do not, why?

(a) Square planar complexes with coordination number four exhibit geometrical isomerism whereas tetrahedral complexes do not , why ? (b) Three geometrical isomers of the square planar complex [Pt(NH_(3))(H_(2)O)(py)(NO_(2))]^(+) are possible . What are they ?

Why do alkynes not show geometrical isomerism ?

Which complexes show geometrical isomerism ?

Which of the following complex compound exhibits geometrical isomerism?

Why are low spin tetrahedral complexes not formed ?

Why are low spin tetrahedral complexes not formed ?

What is geometrical isomerism and what type of compounds do exhibit it?

Explain why compounds of the type aaC=Cab are unable to exhibit geometrical isomerism?

Consider the following satements : S_(1): Generally square planare complexes show geometrical isomerism but do not exhibit optical isomerism because thy do not possess plane of symmetry . S_(2): Delta_(t)=(4)/(9)Delta_(0) S_(3) : In octahedral complexes each electron entering teh t_(2g) orbitals stabilizes the complex ion by 0.4 Delta_(0) and each electron entering teh e_(g) orbital destabilizes the complex by an amount of 0.6 Delta_(0) Select the correct statement from the codes given below.

What is the coordination number of Ni in nickel DMG complex?