A ball of mass 100 g is moving with 100 ms^-1. Find it's wavelength.

Arrange the following :

In the decreasing order of the O - O bond length present in them

O₂, KO₂ and O₂[AsF₄]

Draw the structure of XeF4 and OSF4 according to VSEPR theory clearly indicating the state of hybridisation of the central atom and lone pair of electrons (if any) on the central atom.

A compound AB has rock salt type structure. The formula weight of AB is 6.023 Y amu, and the closest A - B distance is Y^1/3 nm, where Y is an arbitrary number
(a) Find the density of the lattice
(b) If the density of lattice is found to be 20 kg m^-3, then predict the type of defect