In Which of the Following Solutions Would Solid PbBr₂ Be

Multiple Choice

In which of the following solutions would solid PbBr₂ be expected to be the least soluble at 25 °C?

A) 0.1 mol L^-1 H Br
B) 0.1 mol L^-1 NaBr
C) 0.1 mol L^-1 CaBr₂
D) 0.1 mol L^-1 K NO₃