(B) The cathode reaction for the electrolysis of aqueous $NaCl$ is: $2H_2O(l) + 2e^{-} \longrightarrow H_2(g) + 2OH^{-}(aq)$.From the stoichiometry,$1

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(B) The cathode reaction for the electrolysis of aqueous $NaCl$ is: $2H_2O(l) + 2e^{-} \longrightarrow H_2(g) + 2OH^{-}(aq)$.From the stoichiometry,$1 \ mol$ of $H_2$ requires $2 \ mol$ of electrons.Therefore,$0.01 \ mol$ of $H_2$ requires $0.02 \ mol$ of electrons.Total charge $Q = n \times F = 0.02 \times 96500 \ C = 1930 \ C$.Given current $i = 10 \ mA = 10 \times 10^{-3} \ A = 0.01 \ A$.Using the formula $Q = i \times t$:$1930 = 0.01 \times t$.$t = \frac{1930}{0.01} = 193000 \ s = 19.3 \times 10^4 \ s$.

Class 12 Chemistry Electrochemistry Faraday’s law of electrolysis

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Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10 \ mA$ current. The time required to liberate $0.01 \ mol$ of $H_2$ gas at the cathode is $(1 \ F = 96500 \ C \ mol^{-1})$

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A
$9.65 \times 10^4 \ s$
B
$19.3 \times 10^4 \ s$
C
$28.95 \times 10^4 \ s$
D
$38.6 \times 10^4 \ s$

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Electrochemistry

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Faraday’s law of electrolysis

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When electric current is passed through acidified water for $1930 \,s$, $1120 \,mL$ of $H_2$ gas is collected (at $STP$) at the cathode. What is the current passed in amperes?

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Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10 \ mA$ current. The time required to liberate $0.01 \ mol$ of $H_2$ gas at the cathode is $(1 \ F = 96500 \ C \ mol^{-1})$

Similar Questions

$A$ solution of $Fe_{2}(SO_{4})_{3}$ is electrolyzed for '$x$' min with a current of $1.5 \ A$ to deposit $0.3482 \ g$ of $Fe$. The value of $x$ is $.......$. [nearest integer]Given : $1 \ F = 96500 \ C \ mol^{-1}$Atomic mass of $Fe = 56 \ g \ mol^{-1}$

How much Faraday of electricity is required to reduce $1.5 \ mole$ of $KMnO_4$ into $MnO_2$ in a basic medium (in $F$)?

In acidic medium,$MnO_4^-$ is converted to $Mn^{2+}$ when it acts as an oxidant. The quantity of electricity required to reduce $0.06 \ mol$ of $MnO_4^-$ would be ........... $F$.

To complete the precipitation of $Ag$ from $400 \ mL$ of $0.04 \ M$ $AgNO_3$ solution,how long should a $4.8 \ A$ current be passed?

When electric current is passed through acidified water for $1930 \,s$, $1120 \,mL$ of $H_2$ gas is collected (at $STP$) at the cathode. What is the current passed in amperes?

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$A$ solution of $Fe_{2}(SO_{4})_{3}$ is electrolyzed for '$x$' min with a current of $1.5 \ A$ to deposit $0.3482 \ g$ of $Fe$. The value of $x$ is $.......$. [nearest integer]
Given : $1 \ F = 96500 \ C \ mol^{-1}$
Atomic mass of $Fe = 56 \ g \ mol^{-1}$