Fe + CuSO4 =FeSO4+Cu.As we know that copper is less reactive and never displaces hydrogen.?

Question

but how it forms COPPERSULPHATE . cu +h2so4=cuso4+h2,here how h2 comes. let me know as fast as possible bcoz tommorrow is my test.

Answer 1

The first reaction is correct. Iron displaces copper in the solution producing elemental copper.In the second reaction Cu+H2SO4--->CUSO4+ H2 is the same type of displacement reaction where copper replaces H2.
There is a reactivity table which shows which elements will replace others.

Be careful in writing your symbols to always capitalize the first letter of an element, but if it has 2 letters, not the second.

Answer 2

There is a thing called the reactivity table, which lists all the metals (hydrogen counts as a metal for these purposes) and copper comes above hydrogen, but below iron.

Answer 3

your reaction is wrong. CuSO4 isn't prepared this way. i dont know how it is prepared