Question

下列物質(zhì)既能與鹽酸反應(yīng)又能與氫氧化鈉溶液反應(yīng)的是(    )

①NaHCO₃  ②(NH₄)₂S  ③Al(OH)₃  ④NH₄Cl  ⑤甘氨酸  ⑥CH₃—COOH

A.①②③                 B.①②④⑤          

C.⑤⑥                  D.①②③⑤

Answer 1

D

解析:

①+H⁺====H₂O+CO₂,+OH^-====H₂O+  ②+OH^-====NH₃·H₂O

S^2-+2H⁺====H₂S  ③Al(OH)₃+3H⁺====Al³⁺+3H₂O  Al(OH)₃+OH^-====+2H₂O