When iron nails are kept in copper sulphate solution for 30 minutes, the colour of solution changes to

Iron nails become reddish brown in colour and solution becomes green in colour.

(a) When dilute sulphuric acid is poured on a copper plate, there will be evolution of hydrogen gas along with the formation of blue color crystals of copper sulphate.  CuSO4 +...

Iron nails become brownish in colour and the blue colour of copper sulphate solution fades. This is because iron displaces copper from copper sulphate solution and forms ferrous sulphate which...

Zinc is more reactive than copper. Hence,'when a zinc plate is kept in a solution of copper sulphate, it slowly displaces copper from the solution and blue colour of the...

The correct answer is (B) CuSO4

(A) reddish deposit  

The correct answer is (D) D

(C) displacement reaction

i. a. Initial colour of the copper sulphate solution was blue. b. After completion of reaction,colour  of the solution changes to light green. ii. In this reaction,colour of solution changes from blue...

(i) Hydrated copper sulphate – CuSO4.5H2O Anhydrous copper sulphate – CuSO4  Solutions  Activity : (a) Heat a few crystals of copper sulphate in a dry boiling tube. (b) Add 2 – 3 drops of water...