Chemistry Test ...

0.15 M aqueous solution of potassium sulfate has on osmotic pressure of 8.21 atm at 27ºC. Which of the following is correct about the properties of solution?

A solution is made by equilibrating the two solids barium sulfite (K_sp = 8 × 10^–7) and barium sulfate (K_sp = 1.0 × 10^–8) with water. What are the concentrations of the three ions at equilibrium, if some of each of the solid remains ?

Which of the following combinations in an aqueous medium will give a red colour or precipitate?

The value of CFSE of the complex formed in Brown ring test is :

Which of the following statement is correct, based on the information given above?

Which of the following relationship between radii of Gallium and nitrogen in GaN and the lattice parameter, for gallium nitride is correct ? Gallium nitride has hcp lattice of nitride ions and Ga³⁺ occupying half of the tetrahedral voids, without disturbing the lattice of N^3– ion

P is the probability of finding the 2s electron of hydrogen atom in a spherical shell of infinitesimal thickness, dr at a distance r from nucleus, the volume of this shell is 4πr²dr. The qualititative sketch of the dependence of (P/dr) on r is

Which one of the following is pyrosilicate?

Among the following, the incorrect statement is

Among the following, sulphate ore is