If a buffer solution of higher pH than seven is to be made we use___________________?

Related Mcqs:

1. Which one of the following is a buffer solution ?

   A. brine
   B. blood
   C. glue
   D. solution of CuSO4

2. Which set of solutes will form a buffer when dissolved in water to make 1 litter of solution ?

   A. 0.0002M HCI
   B. 0.2 mole of NaCI with 0.2 mole of HNO3
   C. 0.4 mole of CH3COOH with 0.4 mole of NaOH
   D. 0.4 mole of NH3 with 0.2 mole of HCI

3. When 0.01 moles of NaOH are added to a buffer solution, its PH changes from 4.745 to 4.832. What is its?

   A. 0.115
   B. 0.900
   C. 0.015
   D. 0.215

   Submitted by: Muhammad Ali Kunbhar

4. Sodium benzoate and benzoic acid are mixed in equimolar ration to form buffer if pKa is 2 what will be the pH ?

   A. 0
   B. 1
   C. 2
   D. any one

5. 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

6. The main buffer system of the human blood is____________?

   A. H₂CO₃ – HCO₃
   B. H₂CO₃ – CO₃^2-
   C. CH₃COOH – CH₃COO^–
   D. NH₂CONH₂ – NH₂CONH⁺

   Submitted by: Muhammad Ali Kunbhar

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. Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?

   A. buffer solution
   B. normal solution
   C. standard solution
   D. neutral solution

9. The strength of solution of an element whose electrode potential is to be measured is________________?

   A. 2M
   B. 1N
   C. 1m
   D. 1M

10. The volume strength of 1.5 N H2O2 solution is_______?

    A. 4.8
    B. 5.2
    C. 8.8
    D. 8.4

    Submitted by: Muhammad Ali Kunbhar