What happens, when SO2 is passed through a solution of H2S in water ?

Related Mcqs:

1. The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6) ?

   A. 4.4
   B. 5.6
   C. 8.4
   D. 2.4

2. Diffusion co-efficient of a metal in a solid solution depends upon its ?

   A. Composition
   B. Temperature
   C. Both A. & B.
   D. Neither A. nor B.

3. The two elements required to form substitutional solid solution should not have___________________?

   A. Same crystalline structure
   B. Same valency
   C. Widely differing electronegativity
   D. Same atomic sizes

4. Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution ?

   A. A1 is more alkaline than solution A2
   B. A1 is highly acidic
   C. A2 is very slightly acidic
   D. Both B. & C.

5. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50% B is_______________?

   A. R ln 2
   B. -R ln 2
   C. 3 R ln 2
   D. -3R ln 2

6. The activity co-efficient of the solute in a dilute solution ?

   A. Decreases with the increase of concentration of the solute
   B. Increases with the increase of concentration of the solute
   C. Remains constant
   D. Is unity at infinite dilution

7. A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its_______________?

   A. Aqueous tension
   B. Saturated humidity
   C. Vapor pressure
   D. Absolute humidity

8. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by_________________?

   A. Conduction
   B. Convection
   C. Radiation
   D. Both A. & B.

9. Potable water means the water used for____________________?

   A. Fire-fighting
   B. Cooling
   C. Drinking
   D. Evaporation to produce steam

10. Natural water contains approximately ______________ percent of heavy water?

    A. 0.015
    B. 0.71
    C. 1.2
    D. 3.5