Question

Take 500ml beakers and label them A, B, C, D and E. Take about 50ml of water in each beaker.Dissolve
in each beaker a teaspoonful of each substance as given here.
Beaker A Copper sulphate(CuSO4) +Zinc granules(Zn)
Beaker B Copper sulphate (CuSO4) +Iron nails(Fe)
Beaker C Zinc sulphate (ZnSO4) +Copper turnings(Cu)
Beaker D Iron sulphate (FeSO4) + Copper turnings(Cu)
Beaker E Zinc sulphate (ZnSO4) +Iron nails(Fe)
Keep the beakers undisturbed for sometime Record your observations and answer below.
(i) The type of reaction takes place in the beakers is
(a) Displacement (b) Combination (c) Both A and B (d) None of the these
(ii) In beaker A zinc replaces copper,blue colour changes to ____ colour powdery mass.
(a) Brown (b) Red (c) Pink (d) Yellow
(iii) Complete the given equation:
Copper sulphate(CuSO4)+ Iron (Fe) = ______
(iv) Give reason: There is no change shown in the beaker C.

Answer 1

Answer:

ABC +3490thbeusisbdmsochhd