The unit of molality is__________________?

Related Mcqs:

1. The relative lowering of vapour pressure is directly proportional to molality if the solution is________________?

   A. concentrated
   B. dilute
   C. saturated solution
   D. all of the above

2. The number of moles of CO2 which contains 16 g of oxygen is__________________?

   A. 0.25
   B. 0.5
   C. 0.75
   D. 1

3. The hardest of the following solids is__________________?

   A. sodium
   B. diamond
   C. graphite
   D. magnesium

4. A solution has pH = 0 its H+ ion concentration is__________________?

   A. 1 x 10-1
   B. 1 x 10-14
   C. 1 x 10-7
   D. 1

5. Consider the following redox reaction. Zn+dil HNO3? Zn (NO3)2 + N2O + H2O The coefficient number of HNO3 in the equation is__________________?

   A. 6
   B. 8
   C. 10
   D. 4

6. The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?

   A. Ethylene iodide
   B. Ethylene bromide
   C. Ethylene chloride
   D. Ethylene fluoride

7. A process controlled by Distributive law is__________________?

   A. Crystallization
   B. Sublimation
   C. Solvent extraction
   D. Filtration

8. Major cause of SO2 on global scale is__________________?

   A. volcanoes
   B. electric sparks
   C. combustion
   D. all

9. Density of H2SO4 in lead accumulator is__________________?

   A. 1.25g/cm3
   B. 1.3g/cm3
   C. 1.20g/cm3
   D. 1.15g/cm3

10. The chemical composition of cinnabar is__________________?

    A. ZnS
    B. PbS
    C. HgS
    D. FeS