Which of the following crystal will have at least two axial angle `90^(@)`

Which of the following crystals have 6:6 coordination ?

Which of the following crystalline arrangements will have at least one of the following equal to 90^(@) and at least two axial lengths same?

Which of the following uni cells will have at least two lengths same and at least two angles same?

Which of the following substance have least elasticity ?

Which of the following crystals have hexagonal structure ?

Which of the following species has the least bond angle?

Which of the following has the least bond angle?

Which of the following have least dipole moment?