1.

Aqueous solutions of zinc sulphate and iron sulphate were taken in the test tubes I and II by four students. A, B, C and D. Metal pieces of iron and zinc were dropped in the two solutions and observations made after several hours and recorded in the form of a table as given below: Observation by Metal Solution Colour change of solution Deposit/Residue obtained A Fe ZnSO4 turned green silvery grey coating Zn FeSO4 no change no change B Fe ZnSO4 no change black residue Zn FeSO4 colour faded grey coating C Fe ZnSO4 no change no change Zn FeSO4 turned colourless black residue D Fe ZnSO4 no change grey residue Zn FeSO4 no change black residue The correct reporting has been made observations reported by the student :(1) A(2) B(3) C(4) D

Answer» Aqueous solutions of zinc sulphate and iron sulphate were taken in the test tubes I and II by four students. A, B, C and D. Metal pieces of iron and zinc were dropped in the two solutions and observations made after several hours and recorded in the form of a table as given below:






























































Observation by Metal Solution Colour change of solution Deposit/Residue obtained
A Fe ZnSO4 turned green silvery grey coating
Zn FeSO4 no change no change
B Fe ZnSO4 no change black residue
Zn FeSO4 colour faded grey coating
C Fe ZnSO4 no change no change
Zn FeSO4 turned colourless black residue
D Fe ZnSO4 no change grey residue
Zn FeSO4 no change black residue

The correct reporting has been made observations reported by the student :

(1) A

(2) B

(3) C

(4) D


Discussion

No Comment Found

Related InterviewSolutions