Analytical Chemistry Question 199
Question: Potassium chromate solution is added to an aqueous solution of a metal chloride. The precipitate thus obtained is insoluble in acetic acid. When precipitate is subjected to flame test the colour of the flame is
Options:
A) lilac
B) apple green
C) crimson red
D) golden yellow
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ BaCl_2+K_2CrO_4\to BaCrO_4+2KCl.BaCrO_4 $ is insoluble in acetic acid and Ba gives apple green colour in flame test.