Which of the following ion is stable in aqueous solution ?

Related Mcqs:

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

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

2. 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

3. A scale which used to measure the Hydrogen Ion concentration in a solution is known as__________?

   A. Thermometer
   B. Viscometer
   C. PH Scale
   D. Stagmometer

   Submitted by: Ali Jan

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

   A. 0.5
   B. 1
   C. 1.5
   D. 2

5. 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

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

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

7. 58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?

   A. 0.1 M
   B. 1 m
   C. 1 M
   D. 0.1 N

8. Which of the following ion formation is always exothermic ?

   A. Uni-negative
   B. Uni-positive
   C. Di-negative
   D. Di-positive

9. Addition of 2nd electron to a uni negative ion is always____________________?

   A. Exothermic
   B. Endothermic
   C. Data is insufficient
   D. Unpredictable

10. Which of the following aqueous solutions would have the highest boiling point?

    A. 0.20 m glucose
    B. 0.20 m NaCl
    C. 0.15 m CaCl2
    D. 0.25 m sucrose

    Submitted by: Muhammad Ali Kunbhar