试题与答案

已知某温度下,Ksp(AgCl)=1.56×10-10,Ksp(Ag2CrO4)

题型:选择题

题目:

已知某温度下,Ksp(AgCl)=1.56×10-10,Ksp(Ag2CrO4)=1×10-12,下列叙述正确的是(    )

A.饱和AgCl溶液与饱和Ag2CrO4溶液相比,前者的c(Ag)大

B.向氯化银的浊液中加入氯化钠溶液,氯化银的Ksp减小

C.向0.0008 mol·L- 1的K2CrO4溶液中加入等体积的0.002mol/LAgNO3 溶液,则CrO42完全沉淀

D.将0.001 mol·L- 1的AgNO3 溶液滴入0.001 mol·L- 1的KCl和0.001 mol·L- 1的K2CrO4溶液,则先产生AgCl沉淀

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析: 由题意得知:该套利者所进行的操作是蝶式套利。4月份合约净盈利为(2550-2700)×5×10=-7500元;8月份合约净盈利为(2700-2800)×10×10=-10000元;6月份合约净盈利为(2750-2580)×15×10=25500...

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