Question

2. When hydrogen sulphide
is passed through a blue sol
of copper sulphate, a black
precipitate of copper sulphi
obtained and the sulphuric a
so formed remains in the
solution. The reaction is an
example of (A) Displacemen
reaction (B) Combination
reaction (C) Double
decomposition (D)
Decomposition​

Answer 1

Answer:

In the case of a double displacement reaction, two reactants exchange their ions and form new products. This reaction is an example of a double displacement reaction. Hence, the correct answer is Double displacement reaction.