Colourless solutions of the following four sa | vedclass

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(B) The correct answer is $(B)$.When a strip of copper $(Cu)$ is dipped in a solution of silver nitrate $(AgNO_3)$,a displacement reaction occurs beca

Vedclass · Accepted Answer

$AgNO_3$

Vedclass · Answer

(B) The correct answer is $(B)$.When a strip of copper $(Cu)$ is dipped in a solution of silver nitrate $(AgNO_3)$,a displacement reaction occurs because $Cu$ is more reactive than $Ag$ (it is placed above $Ag$ in the electrochemical series).$Cu(s) + 2AgNO_3(aq) 	o Cu(NO_3)_2(aq) + 2Ag(s)$.The formation of copper$(II)$ nitrate,$Cu(NO_3)_2$,imparts a blue colour to the solution.

Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in each one of these. Which solution will turn Blue?

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