Question

Imagine that A and B are cations and X, Y, and Z are anions, and that the following reactions occur:

AX(aq)+BY(aq)→no precipitate
AX(aq)+BZ(aq)→precipitate
Which of the following choices is insoluble?
A. AX
B. AY
C. AZ
D. BX
E. BY
F. BZ

Answer 1

AX(aq)+BY(aq)→no precipitate
AX(aq)+BZ(aq)→precipitate
this two equations imply

AX(aq) is soluble and BY(aq) is insoluble

the answer is
E. BY