OMTEX CLASSES: When H2S gas is passed through an acidified solution of CuSO4, a black precipitate is obtained.

Monday, June 30, 2014

When H2S gas is passed through an acidified solution of CuSO4, a black precipitate is obtained.

Ans.

Hydrogen sulphide reacts with an acidified solution of CuSO₄, to form a black insoluble copper sulphide.
Hence, when H₂S gas is passed through an acidified solution of CuSO₄, a black precipitate is obtained.