Final answer:
b) Basic, Neutral, Acidic, Acidic, Basic
To classify whether 0.1 M solutions of BaCl2, CuSO4, (NH4)2SO4, ZnCl2, and NaCN are acidic, neutral, or basic, we evaluate their origins from strong or weak acids and bases. The solutions of BaCl2 are neutral, CuSO4 and (NH4)2SO4 are acidic, ZnCl2 is acidic, and NaCN is basic.
Step-by-step explanation:
To determine whether 0.1 M solutions of the given salts are acidic, neutral, or basic, we consider the parent acid and base of each salt. Acidity or basicity of a salt in aqueous solution is related to the hydrolysis of its constituent ions.
- BaCl2: Barium chloride comes from a strong base (Ba(OH)2) and a strong acid (HCl). Hence, its solution is neutral.
- CuSO4: Copper(II) sulfate comes from a weak base (Cu(OH)2) and a strong acid (H2SO4). This makes its solution acidic.
- (NH4)2SO4: Ammonium sulfate is derived from a weak base (NH3) and a strong acid (H2SO4). Its solution is acidic.
- ZnCl2: Zinc chloride originates from a weak base (Zn(OH)2) and a strong acid (HCl). Therefore, its solution is acidic.
- NaCN: Sodium cyanide comes from a strong base (NaOH) and a weak acid (HCN). Its solution will be basic.
Thus, the correct answer to the question is b) Basic, Neutral, Acidic, Acidic, Basic.