The equilibrium constant for the reaction H₂(g)+I₂(g)⇔2HI(g) is 81 at a certain temperature.If the concentrations of H₂ and I₂ are 3mole.lit each at equilibrium,the equilibrium concentration of HI is

consider the following reaction equilibrium N₂(g)+3H₂(g)⇔2NH₃(g).Initially 1 mole of N₂ and 3 moles of H₂ are taken in a 2 litre flask.At equilibrium state if the number of moles of N₂ is 0.6 what is the total number moles of all gases present in the flask at equilibrium

On passing a current through molten KCl 19.5g of K is deposited.The amount of aluminium deposited by the same quantity of electricity if passed through molten AlCl₃ is

A quantity of PCl_5(g) was heated in a 10 litre vessel at 250⁰C PCl_5(g) ⇔PCl_3(g)+Cl_2(g) At equilibrium the vessel contains 0.1 mole of PCl₅ 0.2 mole of PCl₃ and 0.2 mole of Cl₂ .The equilibrium constant is

H₃O⁺+OH^-→2H₂O

Three faradays of electricity are passed through molten Al₂O₃,aqueous solution of CuSO₄ and molten NaCl taken in three different electrolytic cells.The amount of Al,Cu and Na deposited at cathodes will be in the ratio

Number of coulombs of current required to convert completely 1 mole of MnO₄^-ions in acid medium to one mole of Mn²⁺ions electrolytically is

In a 500ml flask,the degree of dissociation of PCl₅ at equilibrium is 40% and the initial amount in 5 moles.The value of equilibrium constant in mol lit^-1 for the decomposition of PCl₅ is

The olefin which on ozonolysis gives CH₃CH₂CHO and CH₃CHO is

Which of the following contains a coordinate covalent bond ?