Which of the following pairs will give displacement reactions?

(a) NaCl solution and copper metal

(b) MgCl2 solution and aluminium metal

(c) FeSO4 solution and silver metal

(d) AgNO3 solution and copper metal

Asked by Vishal kumar | 1 year ago |  189

1 Answer

Solution :-

Option d i.e. AgNO3 solution and copper is correct answer. Copper displaces the silver cations (reducing them to the elemental metal), in the process copper itself being oxidized to Copper II cations (Cu2+) and going into solution. So silver metal precipitating out and a copper II nitrate solution will be remaining.

Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag (s)

Answered by Shivani Kumari | 1 year ago

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