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Which one of the following could not be liberated from a suita

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Which one of the following could not be liberated from a suitable electrolyte by the passage of 0.25 faraday of electricity through that electrolyte :

0.25 mole of Ag

16gm of Cu

2gm of O

_{2}

(g)

2.8ltrs of H

_{2}

at STP

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Which one of the following could not be liberated from a suitable electrolyte by the passage of 0.25 faraday of electricity through that electrolyte :

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Text solutionVerified

0.25 f a r a d a y c ha r g e = 0.25 m o l es o f e l ec t ro n s

A g^{+} + e^{-} \to A g

(A) 0.25 e^{-} l ib er a t es 0.25 m o l es o f C u

(B) 16 g C u = \frac{16 \times 2}{63.5} = \frac{32}{64} = 0.5

∴ C u re q u i res 0.5 m o l es o f e^{-}

(C) 2 g o / o_{2} re q u i rs \frac{2 \times 4}{32} = 0.25 m o l e

(D) 2.8 r u l es H_{2} = \frac{2.1}{22.4} = 0.125

1 mole

H_{2}

require 2 mole

e^{-}

∴ m o l es o f e^{-} re q u i re d = 0.125 \times 2 = 0.25

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Question Text	Which one of the following could not be liberated from a suitable electrolyte by the passage of 0.25 faraday of electricity through that electrolyte :
Answer Type	Text solution:1
Upvotes	153

Which one of the following could not be liberated from a suitable electrolyte by the passage of 0.25 faraday of electricity through that electrolyte :

Text solutionVerified

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