When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ?

Related Mcqs:

1. When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________?

   A. lighter
   B. intermediate
   C. heavier
   D. are collected at same time

2. Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?

   A. Phosphine
   B. Phosphorus
   C. Water
   D. Phosphorus pentoxide

3. Phosphoric acid is a weak acid and its basicity is____________________?

   A. 1
   B. 3
   C. zero
   D. 2

4. When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?

   A. 2 moles of ethane
   B. 1 mole of ethane
   C. 2 moles of butane
   D. 1 mole of butane

5. 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

6. Which of the following will give phosphoric acid one reaction with water_________________?

   A. PCI5
   B. P2O3
   C. P2O5
   D. All of the above

7. The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?

   A. 3
   B. 2.7
   C. 2
   D. 1.5

8. Which of the following ion is stable in aqueous solution ?

   A. H+
   B. H-
   C. Cl-
   D. All are stable

9. Which one of the following gives white precipitate with aqueous solution of BaCl2?

   A. NaHCO3
   B. NaNO3
   C. Na2CO3
   D. Na2CrO4

10. Aqueous solution of borax above 62°C gives crystals of________________?

    A. Na2B4O7.4H2O
    B. Na2B4O7.5H2O
    C. Na2B4O7.2H2O
    D. Na2B4O7.10H2O