Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?

Related Mcqs:

1. For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise?

   A. Sodium chloride
   B. Sodium carbonate monohydrate
   C. Anhydrous sodium sulphate
   D. Hypo

2. Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in__________________?

   A. Increased COP
   B. Same COP
   C. Decreased COP
   D. Increased or decreased COP; depending upon the type of refrigerant

3. If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as__________________?

   A. Solubility increases as temperature increases
   B. Solubility increases as temperature decreases
   C. Solubility is independent of temperature
   D. Solubility increases or decreases with temperature depending on the Gibbs free energy change
   of solution

4. “The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?

   A. Raoult’s
   B. Henry’s
   C. Amagat’s
   D. None of these

5. With rise in temperature, the solubility of ammonia in water at a fixed pressure__________________?

   A. Increases
   B. Decreases
   C. Remains unchanged
   D. Increases exponentially

6. In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is__________________?

   A. Independent of the temperature
   B. Increased with the increase in pressure
   C. Decreased with the increase in pressure
   D. Unchanged by the pressure change

7. In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is__________________?

   A. Independent of temperature
   B. Increases with rise in pressure
   C. Increased with decrease in pressure
   D. Unchanged with pressure changes

8. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at ______________ percent relative humidity ?

   A. 0
   B. 100
   C. 50
   D. None of these

9. Which of the following has the smallest least effect on the solubility of a solute into the solvent ?

   A. Nature of the solute
   B. Nature of the solvent
   C. Temperature
   D. Pressure

10. Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent ?

    A. Temperature
    B. Nature of solute
    C. Pressure
    D. Nature of solvent