5. Which of the following compounds will NOT show the precipitation? (A) AgNO3 + HCl (B) Hg(NO3)2 + HCl (C) Pb(NO3)2 + Na2S (D) Hg(NO3)2 + Na2S

11. Rank the following compounds according to increasing solubility in water. I. CH3–CH2–CH2–CH3 II. CH3–OH III. CH3–CH2–OH IV. CH3–CH2–O–CH2–CH3 (A) I < IV < III < II (B) I < II < IV < III (C) III < IV < II < I (D) I < II < III < IV (E) None of these (A-D) is correct.