Equilibrium Question 197
Question: On the addition of a solution containing $ CrO_4^{2-} $ ions to the solution of $ B{a^{2+}},S{r^{2+}} $ and $ C{a^{2+}} $ ions, the precipitate obtained first will be of [MP PMT 1993]
Options:
A) $ CaCrO_4 $
B) $ SrCrO_4 $
C) $ BaCrO_4 $
D) Mixture of A, B, C
Show Answer
Answer:
Correct Answer: C
Solution:
When we added barium ion in chromate ion solution we obtained yellow ppt of $ BaCrO_4 $ . $ BaCl_2+K_2CrO_4\to \underset{\text{Yellow ppt}\text{.}}{\mathop{BaCrO_4}},\downarrow +,2KCl $
