State Raoult’s law for the solution containing volatile components. What is the similarity between Raoult’s law and Henry’s law ?
According to Raoult’s law for the solution containing volatile components, the partial vapour pressure of each component is directly proportional to its mole fraction.
In both case, / Henry’s law is a special case of Raoult’s law.
In both case, / Henry’s law is a special case of Raoult’s law.
State Raoult’s law for a solution containing nonvolatile solute. What type of deviation from Raoult’s law is shown by a solution of chloroform and acetone and why?
State Henry’s law. What is the effect of temperature on the solubility of a gas in a liquid ?
Calculate the molality of ethanol solution in which the mole fraction of water is 0.88.
What type of intermolecular attractive interaction exists in the pair of methanol and acetone ?
Define azeotropes. What type of azeotrope is formed by positive deviation from Raoult’s law ?
Give an example.
(i) Following reactions occur at cathode during the electrolysis of aqueous silver chloride solution :
= +0.80 V
= 0.00 V
On the basis of their standard reduction electrode potential (E°) values, which reaction is feasible at the cathode and why ?
(ii) Define limiting molar conductivity. Why conductivity of an electrolyte solution decreases with the decrease in concentration ?
Define the following terms:
(i) Abnormal molar mass
(ii) van’t Hoff factor
What are the transition elements ? Write two characteristics of the transition elements.
The conductivity of an aqueous solution of NaCl in a cell is 92 \(Ω^{−1}\) \(cm^{-1}\) the resistance offered by this cell is 247.8 Ω . Calculate the cell constant.
Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with (i) an iodide (ii) H₂S.
Complete and balance the following chemical equations:
(a) Fe²⁺ + MnO₄⁻ + H⁺ →
(b) MnO₄⁻ + H₂O + I⁻ →