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.