Question

In order to study the relative activity of metals, four metals, namely, Cu, Ag, Al
and Fe and their salts namely, CuSO4, AgNO3, Al2(SO4)3 and FeSO4 were taken.
The salts were dissolved in water separately in four beakers. Small amounts of
these solutions were taken in four test tubes and a strip of copper was dipped
in each of these four test tubes. Same was repeated for Ag in another set of
four test tubes, and likewise with Al and Fe strips.

(i). Which of the following reaction will taken place ?
(a) Ag in CuSO4 solution (b) Cu in FeSO4 solution
(c) Fe in Al(SO4)3 solution (d) Fe in CuSO4, solution
(ii). For the reaction chosen in (i), what will be the colour of the solution?
(a) Blue (b) Colourless (c) Light green (d) Pale yellow

Answer 1

Answer:

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