Redox Reactions — Chemistry STD 11 Science — Question

Determine the solubilities of silver chromate, barium chromate, ferric hydroxide, lead chloride and mercurous iodide at 298 K from their solubility product constants given in Table 6.9. Determine also the molarities of individual ions.

Describe the types of thermodynamic systems with examples.

Give a brief description of the principles of the following techniques taking an example in each case.
Crystallisation

What is the valence shell electron pair repulsion principle? Explain how this determines the geometry of molecules.

State modern periodic law and explain modern form of periodic table.

What is the concentration of sugar (C₁₂H₂₂O₁₁) in mol L^–1 if its 20g are dissolved in enough water to make a final volume up to 2L?

The ionization constant of dimethylamine is 5.4 × 10^–4. Calculate its degree of ionization in its 0.02M solution. What percentage of dimethylamine is ionized if the solution is also 0.1M in NaOH?

All transition elements are d-block elements, but all d-block elements are not transition elements. Explain.

What sorts of informations can you draw from the following reaction?
(CN)₂(g) + 2OH^-(aq) → CN^-(aq) + CNO^-(aq) + H₂O(l)

The ionization constant of propanoic acid is 1.32 × 10^–5. Calculate the degree of ionization of the acid in its 0.05M solution and also its pH. What will be its degree of ionization if the solution is 0.01M in HCl also?