Chemistry 11 Chapter 8 Chemical Equilibrium Test 8

Chemistry 11 Chapter 8
Chemical Equilibrium
Test 8

1. Which one of the following is buffer solution?

a) Brine
b) Blood
c) Solution of CuSO₄
d) Glue

2. By the addition of base in water,pH will be?

a) Less than 7
b) Equal to 7
c) No effect
d) More than 7

3. Conjugate base of a weak acid is?

a) Weak base
b) Do not ionized
c) Salt
d) Strong base

4. Idea of pH and POH was given by?

a) Einstein
b) Sorcenson
c) Gibbs
d) Chadwick

5. Ka <10^-3means?

a) Very strong acid
b) Very weak acid
c) Very strong salt
d) Very strong base

6. Negative log of molar concentration of H ion is called?

a) pOH
b) pH
c) pI
d) acidity of compound

7. Any substance which accept H ion is base this was given by?

a) Lowry’s
b) None of these
c) Arrhenius
d) Lewis

8. Solution whose pH cannot change called?

a) Normal solution
b) Primary solution
c) Standard solution
d) Buffer solution

9. Temprature for preparation of SO₃ is?

a) 400C
b) 400-500C
c) 600C
d) 150C

10. Addition of CH₃COONa gives in water? a) Standard solution
b) Buffer solution
c) Salt
d) Acidic solution

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