Which out of N_(2) and H_(2)O is polar and why ?

Out of CO and CO_2 which acts as an ligand and why?

Which one out of S_(N)1 and S_(N)2 reactions is more suceptible to steric effect and why?

Why are the rates of diffusion of N_(2)O and CO_(2) gases the same under identical set of conditions?

Out of O and O_(2) , which one has a greater ionisation enthalpy and why?

(i) Sketch P/T versus T plot for an ideal gas at constant volume. Indicate the value of the slope (mass fixed). (ii) Under the same conditions of temperature and pressure NH_(3), Cl_(2) and CO_(2) gases are allowed to diffuse through a porour wall. arrange these gases in the increasing order of the rate of diffusion.

Under experimental conditions, for the reaction N_(2)(g) +3H_(2)(g) hArr 2NH_(3)(g) , the equilibrium mixture contains 17% of NH_(3) and 83% of (N_(2)+H_(2)) . Under the same conditions, what will be the percentages of NH_(3) and (N_(2)+H_(2)) in the reaction 2NH_(3)(g) hArr N_(2)(g)+3H_(2)(g) at equilibrium?

Under one experimental condition, an element crystallises in face-centred cubic structure with a unit-cell edge length of a_(1) , while under another experimental condition, it crystallises in body-centred cubic structure with a unit-cell edge length of a_(2) . Find the ratio of the densities of these structures.

Write whether the following statement is true or false: Under the same condition of temperature and pressure equal volumes of CO_2 and N_2 gas contain different number of molecules.