Question

which of the following is a true statement
a cs2cro4 and bacro4 are both insoluble
b cs2cro4 and bacro4 are both soluble
c cs2cro4 is insoluble in water while bacro4 is soluble in water
d cs2cro4 is soluble in water while bacro4 is a solid

Explanation:

• According to solubility rules, most chromates (\(CrO_{4}^{2 -}\)) are insoluble. However, chromates of alkali metals (such as cesium, \(Cs\)) are soluble. So \(Cs_{2}CrO_{4}\) is soluble.
• Barium chromate (\(BaCrO_{4}\)) is insoluble in water and exists as a solid.

Answer:

D. \(Cs2CrO4\) is soluble in water while \(BaCrO4\) is a solid