Redox Reactions And Electrochemistry Ques 304

Question: A certain quantity of electricity is passed through an aqueous solution of $ AgNO_3 $ and cupric salt solution connected in series. The amount of $ Ag $ deposited is $ 1.08,gm $ , the amount of copper deposited is (atomic weight of Cu = 63.5; Ag = 108) [EAMCET 1986]

Options:

A) 0.6454 g

B) 6.354 g

C) 0.3177 g

D) 3.177 g

Show Answer

Answer:

Correct Answer: C

Solution:

$ \frac{Wt\text{.},of\ Cu}{Wt\text{.},of,Ag}=\frac{Eq\text{. }wt\text{.},of,Cu}{Eq\text{.},wt\text{.},of,Ag} $ ; $ \frac{Wt\text{.}ofCu}{1.08}=\frac{63.5/2}{108} $ Wt. of $ Cu=0.3177gm $ .



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