Question

A copper strip is left in a colourless silver nitrate solution after sometime it is observed that the solution turns bluish green

a) write the reason why does the solution turn bluish green
b)write the balanced chemical equation to represent the changing take place?

Answer 1

a) the Cu being more reactive than Ag displaces Ag in AgNO3 and forms Cu(NO3)2 which gives the blue colour to the solution

b) Cu + 2AgNO3 ---> Cu(NO3)2 + 2Ag

Answer 2

(a.)as we keep cu strip in silver nitrate the cu displaces silver from silver nitrate....
there fore colour changes

(b.) Cu + 2AgNo3 ------> Cu(NO3)2 + 2 Ag