Q10 of 21 Page 6

Describe the colors of the following solutions:

(i) Copper Sulphate


(ii) Ferrous Sulphate


(iii) Zinc Sulphate


(iv) Aluminum Sulphate

(i) Copper Sulphate - Blue


(ii) Ferrous Sulphate – Pale Green


(iii) Zinc Sulphate – Colourless


(iv) Aluminum Sulphate – Colourless


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8

Why are gold and silver used for ornaments?

 9

Can we store ZnSO4 solution in Al vessel?

 11

Describe the colors of the following metals:

(i) Zinc (Zn)


(ii) Iron (Fe)


(iii) Copper (Cu)


(iv) Aluminum (Al)

 12

Arrange the following metals in decreasing order of reactivity.

Zn, Cu, Fe, Al