A.向2.0mL浓度均为0.lmol⋅L-l的KC1、KI混合溶液中滴加1~2滴0.0lmol/LAgNO3溶液,振荡,沉淀呈黄色,说明AgCl的Ksp比AgI的Ksp大 |
B.在稀硫酸中加入铜粉,铜粉不溶解;再加入适量的H2O2,铜粉仍不溶解 |
C.向AlC13溶液中滴加氨水,产生白色沉淀;再加入NaHSO4溶液,沉淀不消失 |
D.将CO2通入Ba(NO3)2溶液中至饱和,无沉淀产生;再通入SO2,也无沉淀产生 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2