Solubility of CaF2 is 2.0×10-4 gdm-3 then Ksp of CaF2 is_______________?

Related Mcqs:

1. AgCl dissolved with conc (2×10-2) Ksp will be__________________?

   A. 3.6 x 10-6
   B. 3.6 x 10-5
   C. 7.2 x 10-6
   D. 4 x 10-4

2. Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?

   A. 2.0 x 10-10 mol dm-3
   B. 1.414 x 10-5 mol dm-3
   C. 1.0 x 10-10 mol dm-3
   D. 1.0 x 10-5 mol dm-3

3. Solubility of any salt can be determined from_______________?

   A. Ka
   B. Kb
   C. Kc
   D. Ksp

4. Solubility of KCIO3 gives__________________?

   A. continuous and falling solubility curve
   B. discontinuous and falling solubility curve
   C. continuous and rising solubility curve
   D. discontinuous and rising solubility curve

5. Which of the following substance do not show continuous solubility curve ?

   A. KCIO4
   B. Na2SO4. 10H2O
   C. K2Cr2O7
   D. PbCl2

6. The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?

   A. 7
   B. 10
   C. 12
   D. 16

7. The weakest (in strength) of the following intermolecular forces is_______________?

   A. Hydrogen bonding
   B. Vander Waals force
   C. Forces among the polar molecules
   D. Ionic bond

8. At start of reaction the concentration of reactants is_______________?

   A. high
   B. low
   C. according to Kc
   D. constant

9. Enzyme proved useful in cancer treatment is_______________?

   A. Lactic dehydrogenase
   B. Alkaline phosphatase
   C. L-asparaginase
   D. Cellulase

10. The colour of chlorine gas is_______________?

    A. pale yellow
    B. freenish yellow
    C. reddish brown
    D. grayish black