Which gives (s) yellow precipitate with `K_(2)CrO_(4)` ?

Options

A. `Ba^(2+)`
B. `Cd^(2+)`
C. `Ca^(2+)`
D. `Sr^(2+)`

Answer

A

Explanation

`BaCrO_(4)` is insoluble but other salt of chromates are soluble in water.
`Ba^(2+)+K_(2)CrO_(4)tounderset("yellow ppt.")(BaCrO_(4)darr)+2K^(+)`.