Ncert Solutions Chemistry Class 11th

Partial Pressure of O? = K? * solubility (K? = Henry's constant)
Solubility = PO? / K? = 20 / (8.0 * 10? ) = 2.5 * 10? = 25 * 10? M
Ans = 25

In an aqueous medium, all alkali metal cations are converted into their hydrated form. More intensely positive cations have more hydration, and hence the size of the cation increases after hydration. Therefore, the Li? cation has a larger size in hydrated form and the least conductivity. The order of conductivity of alkali metal ions is: Li? < Na? < K? < Rb? < Cs?

Except for option (D), all are the important characteristics of D? O. D? O is useful for the isotopic leveling effect in reaction mechanisms. The dielectric constants of H? O and D? O are respectively 80 and 60.

Excess of nitrogen and phosphorus is primarily responsible for eutrophication and hence an indicator of polluted environment.

In water gas shift reaction carbon monoxide is oxidized into carbon dioxide by treating it with steam in presence of catalyst.

Na? SO? + H? SO? → SO? + Na? SO? + H? O
SO? + 2NaOH → Na? SO? + H? O
Na? SO? + SO? + H? O → 2NaHSO?

Dihydrogen of high degree of purity (>99.95%) is obtained by the electrolysis of warm aqueous barium hydroxide solution between nickel electrodes.

³? Cl ³? Cl
Molar ratio x 1 – x
M? 35 * x + 37 (1 − x) = 35.5
35x + 37 – 37x = 35.5
2x = 1.5
x = 3/4
So, ratio of ³? Cl: ³? Cl = 3: 1