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

90 grams of water and 230 grams of an organic liquid n mixing gives a solution in which the mole fraction of water in the resulting solution is 0.5 the molecular weight of the organic liquid is

The equilibrium constant Kp for the reaction 2SO₂+O₂⇔2SO₃ is 2.5 atm^-1.What would be the partial pressure of O₂ at equilibrium. If the equilibrium partial pressures of SO₂ and SO₃ are equal

The hemoglobin from the red blood corpuscles of most mammals contains approximately 0.33% of iron by weight. The molecular weight of hemoglobin as 67200.the number of iron atoms in each molecule of hemoglobin is (atomic weight of iron = 56)

8 gram of NaOH is mixed with 9.8 gram of H₂SO₄ in litre of solution the pH of the solution is

Anhydrous Magnesium chloride can be prepared by heating MgCl₂6H₂O

For the redox reaction Cr₂O₇²⁺ + C₂O₄²⁺ + H⁺ → Cr³⁺ + CO₂ + H₂O the correct coefficients of Cr₂O₇^2-, C₂O₄^2- and H⁺ in the balanced equation are

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 the cathodes will be in the ratio of

9.2 gm of N₂O₄(g) is taken in a closed one litre vesseland heated till the following equilibrium is reached N₂O₄(g)⇔2NO₂(g).At equilibrium 50% of N₂O₄(g) is dissociated.what is the equilibrium constant(in mole lit^-1)(M.wt of N₂O₄ is 92)

Equivalent conductance at infinite dilution,λ⁰ of NH₄Cl,NaOH and NaCl are 128.0,217.8 and 109.9 ohm^-1cm²eq^-1 respectively. The equivalent conductance of 0.01N NH₄OH is 9.30 ohm^-1cm²eq^-1,then the degree of ionization of NH₄OH at this temperature would be(approximately)