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Electrochemistry question bank (Chemistry)

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Q1.

Calculate the time required in second to deposit 5.85 g Ni from $\text{NiCl}_2$ solution by passing 10 A current (molar mass of Ni $= 58.5\ \text{g mol}^{-1}$)

(A)

$19.3$

(B)

$193$

(C)

$1930$

(D)

$19300$

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Q2.

How long (in minutes) must a $2\ \text{A}$ current be passed through $\text{AgNO}_3$ solution to deposit $5.4\ \text{g Ag}$? [Molar mass of Ag $= 108\ \text{g mol}^{-1}$]

(A)

$40.2\ \text{min}$.

(B)

$54.5\ \text{min}$.

(C)

$30.1\ \text{min}$.

(D)

$60.6\ \text{min}$.

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