试题与答案

下列实验不能达到目的的是 选项实验操作实验目的A向5 mL 0.1 mol/L

题型:选择题

题目:

下列实验不能达到目的的是

选项实验操作实验目的
A向5 mL 0.1 mol/L AgNO3溶液中滴加3滴0.1 mol/LNaCl溶液,产生白色沉淀;再向其中滴加3滴0.1mol/L的KI溶液,有黄色沉淀产生验证Ksp(AgCl)> Ksp(AgI)
B向适量样品溶液中滴加KSCN溶液检验FeSO4溶液是否被氧化
C向适量样品溶液中滴加盐酸酸化,再滴加BaCl2溶液检验Na2SO3溶液是否被氧化
D向Na2SiO3溶液中通入CO2验证非金属性:碳>硅

答案:

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参考答案:A

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题型:填空题

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The (14) of facilities at the Tamarisk Beach Hotel near the small village of Ortakent makes (15) a good base. The family-run hotel—rooms and suites are in two-storey buildings (16) by palm trees and flowers in terracotta pots—sits above its own sandy (17) beach, shaded by tamarisk trees and sheltered by nearby islands.
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