Extraction of Metals - Result Question 67

####68. $AgCl$ dissolve in excess of $KCN$ solution to give complex compound.

$(1980)$

True/False

$69 Cu^{+}$disproportionate to $Cu^{2+}$ and elemental copper in solution.

(1991)

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Solution:

  1. $K\left[Ag(CN) _2\right]: AgCl+2 KCN \longrightarrow K\left[Ag(CN) _2\right]+KCl$


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