Unit-6

Question 1

1. Of the following salts, which are acidic?
   i sodium chloride ii) potassium acetate iti) lithium benzoate iv) ammonium nitrate
   v) ammonium iodide
   a. 1
   b. i and ii
   c. ii and iii
   d. iv and v
   e. none

Question 2

2. Consider an acid with an ionization constant of 6.4E-07. Calculate its pKa •
   a. 1.56E-08
   b. 1.56E06
   с. 7.81
   d. 6.91
   e. 1.00E-14

Question 3

3. Strontium perchlorate is an example of a(n)
   a. acidic salt
   b. basic salt
   c. neutral salt
   d. organic compound
   e. binary acid

Question 4

18. Which of the following statements conceing aqueous solutions of sats is FALSE?
    For any salt of a weak acid and a weak base, the pi will be 7.
    b. For any salt of a strong acid and a weak base, the pli will be < 7.
    c. For any salt of a weak acid and a strong base, the phi will be > 1.
    d. For sy salt of a strong acid and a strong base, the pl will be 7.

Question 5

17. Which of the following is a conjugate acid-base pain?
    A) NHt/NH:
    в H0 он
    C)H250y SO32-
    D) 5042-SO32-
    E) NOHNa+