The main buffer system of the human blood is____________?

Related Mcqs:

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

   A. Strong acid and strong base
   B. Weak acid and strong base
   C. Weak acid and strong base
   D. Weak acid and its salt with strong base

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

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

3. 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

4. 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

5. 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

6. The balanced chemical equation for the reaction which occurs when Be is added to water is____________?

   A. Be+2H2O?Be (OH)2+H2
   B. Be+H2O?Be (OH)2+H2
   C. Be+H2O?[Be (OH)4]+2+H2
   D. no reaction

7. The range of acid PH on PH scale is____________?

   A. 9 to 8
   B. 6 to 7
   C. 1 to 6
   D. 1 to 10

   Submitted by: Chakar Hussain Shar

8. Which of the following gases is the main cause of acid rain ?

   A. CO
   B. NO2
   C. both a & b
   D. none of the above

9. Alkanes containing a methyl group on main chain at 2nd carbon are called________________?

   A. iso-alkane
   B. normal-alkane
   C. neo-alkane
   D. branched-alkane

10. Main use of salt in diet is to : ___________?

    A. ease the process of cooking
    B. increase the taste
    C. produce small amount of hydrochloric acid required for digestion
    D. inclease solubility of food particles in water

    Submitted by: Abid Hussain