The PH of pure water at 25°C, kw=1×10-4____________?

Related Mcqs:

1. Pure metal__________________?

   A. corrode slowly
   B. corrode rapidly
   C. does not corrode easily
   D. none of these

2. Which one of following is not a property of pure quartz ?

   A. Coloured solid
   B. Brittle
   C. Hard
   D. All of above

3. Which one is a pure carbon?

   A. Coal Tar
   B. Coal gas
   C. Coke
   D. None of These

   Submitted by: Aamir khan Hullio

4. Chlorination of water may be harmful if the water contains_________________?

   A. Ammonia
   B. Dissolved oxygen
   C. Carbon dioxide
   D. All

5. Chlorination of water may be harmful if the water contains_________________?

   A. Ammonia
   B. Dissolved oxygen
   C. Carbon dixide
   D. All

6. Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

   A. 60%
   B. 50%
   C. 52%
   D. 8%

7. The method in which more steam is passed through the water Gas to oxidize CO to Carbon Dioxide which is then more soluble in water than Hydrogen gas and gets separated is called______.

   A. liquification process
   B. Bosch  Process
   C. Fragmentation
   D. Thermal decomposition

   Submitted by: Aamir khan Hullio

8. In water molecule, Hydrogen & water are held together by ______ bond.

   A. Ionic
   B. Covalent
   C. Hydrogen
   D. Dating

   Submitted by: Aamir khan Hullio

9. Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?

   A. NH2Cl
   B. NHCI2
   C. NCI2
   D. all of the above

10. In water, Hydrogen is present ________by mass.

    A. 22%
    B. 11.11%
    C. 31.13%
    D. 15.15%

    Submitted by: Aamir khan Hullio