A) 6.4 g
B) 2.3 g
C) 12.8 g
D) 1.6 g
E) 3.2 g
Correct Answer: E
Solution :
Number of equivalents of silver formed = Number of equivalents of copper formed. In \[AgN{{O}_{3}},\ Ag\]is in +1 oxidation state. In \[CuS{{O}_{4}},\ Cu\]is in +2 oxidation state. Equivalent weight of Ag =\[\frac{108}{1}=108\] Equivalent weight of Cu \[=\frac{63.6}{2}=31.8\] \[\frac{{{M}_{1}}}{{{M}_{2}}}=\frac{{{E}_{1}}}{{{E}_{2}}}\] ; \[\frac{10.79}{{{M}_{Cu}}}=\frac{108}{31.8}\] \[{{M}_{Cu}}=\frac{10.79\times 31.8}{108}=3.2\ gm\].
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