ORIGINAL WHITE SAUCE PASTA

SUNLIGHT-WHITE OR COLORED

White lead is

White lead is

A mixture of two white substances was dissolved in water.On passing Cl_2 gas through the solution a deep brown colour is developed. Addition of BaCl_2 solution to the original solution gives a white precipitate.Addition of a large amount of NaOH solution to the original solution gives a white precipitate, whose suspension in water is used as an antacid.The mixture gives golden yellow colour flame. The mixture contains :