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hangdam2806
2 năm trước
Câu 1: Cho những oxit sau: SO2, K2O, CaO, N2O5, P2O5, BaO. Dãy gồm những oxit tác dụng với H2O, tạo ra bazơ là: A. SO2, CaO, K2O B. K2O, N2O5, P2O5 C. CaO, K2O, BaO D. K2O, SO2, P2O5 Câu 2: Những oxit sau: CaO, SO2, Fe2O3, Na2O, CO2, P2O5. Dãy gồm nhưungx oxit tác dụng với nước tạo ra axit là: A. CaO, SO2, Fe2O3 B. SO2, Na2O, CaO C. SO2, CO2, P2O5 D. CO2, Fe2O3, P2O5 Câu 3: Cho các bazơ sau: LiOH, NaOH, KOH, Ca(OH)2, Mg(OH)2, Al(OH)3, Fe(OH)3. Dãy bazơ tan trong nước tạo thành dung dịch kiềm là: A. Ca(OH)2, LiOH, Cu(OH)2, Mg(OH)2 B. Ca(OH)2, KOH, LiOH, NaOH C. KOH, LiOH, NaOH, Al(OH)3 D. Al(OH)3, NaOH, Mg(OH)2, KOH Giai thich vi sao chọn
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