A solid substance X when treated with solid substance Y and mixed with a glass rod,the test tube becomes extremely cold Identify X and Y( names only)

A solid substance X when treated with solid substance Y and mixed with

1.	A solid substance X when treated with solid substance Y and mixed with a glass rod,the test tube becomes extremely cold Identify X and Y( names only)
Answer» ROUS SULPHATE Y - FERRIC oxdide