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

Related Mcqs:

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

   A. Carbonate (monohydrate)
   B. Chloride
   C. Thiosulphate
   D. Bisulphite

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

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

3. At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to___________________?

   A. Decrease in mean free path
   B. Increased collision rate among molecules
   C. Increase in molecular attraction
   D. Increase in average molecular speed

4. In _______________ process, ions of salts react with water to produce acidity or alkalinity ?

   A. Hydration
   B. Hydrolysis
   C. Electrolysis
   D. Dialysis

5. Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of _____________ present in it?

   A. Coal ash
   B. Potassium cyanide
   C. Ortho-xylene
   D. None of these

6. 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

7. In a binary liquid system, the composition expressed as _______________ is independent of the temperature & pressure?

   A. Kg of solute/kg of solvent
   B. Kg-mole of solute/kg-mole of solvent
   C. Kg-mole of solute/1000 kg of solvent
   D. All A., B. & C.

8. Concentration of a solution expressed in terms of _______________ is independent of temperature?

   A. Molarity
   B. Normality
   C. Molality
   D. None of these

9. In case of an _______________ process, the temperature of the system increases?

   A. Isothermal compression
   B. Isothermal expansion
   C. Adiabatic expansion
   D. Adiabatic compression

10. If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?

    A. Zero
    B. 50%
    C. Almost 100%
    D. unpredictable