Potassium chromate solution is added to an aqueous solution of a metal chloride. The yellow precipitate thus obtained is insoluble in acetic acid. The precipitate is subjected to flame test, the colour of the flame is :

Options

A. lilac
B. apple green
C. crimson red
D. brick red

Answer

B

Explanation

`Ba^(2+)` salts gives yellow precipitate with `K_(2)CrO_(4)` solution and this precipitate is not soluble in `CH_(3)CO OH`.
`Ba^(2+)` ions gives apple green colour in the flame test.