$Assertion (A)$: $A$ current of $96.5 \ A$ is passed into aqueous $AgNO_3$ solution for $100 \ s$. The weight of silver deposited is $10.8 \ g$ (At. wt. of $Ag = 108$).
$Reason (R)$: The mass of a substance deposited during the electrolysis of an electrolyte is inversely proportional to the quantity of electricity passing through the electrolyte.
The correct answer is :
$Reason (R)$: The mass of a substance deposited during the electrolysis of an electrolyte is inversely proportional to the quantity of electricity passing through the electrolyte.
The correct answer is :
- ABoth $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$
- BBoth $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A)$
- C$(A)$ is true but $(R)$ is false
- D$(A)$ is false but $(R)$ is true
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Similar Questions
How many faradays are required to reduce $1 \ mol$ of $Cr_{2}O_{7}^{2-}$ to $Cr^{3+}$ in acidic medium?
When a current of $0.5 \ A$ is passed for $2 \ hours$ through a molten metal salt,$3.88 \ g$ of the metal was deposited. If the atomic mass of the metal is $208 \ units$,the oxidation state of the metal in the salt is:
$A$ solution of $CuSO_4$ is electrolysed using a current of $1.5 \ A$ for $10 \ minutes$. What mass of $Cu$ is deposited at the cathode (in $g$)? (Atomic mass of $Cu = 63.7$)
Match the column :-
Column $I$ (Reduction process) Column $II$ (Charge required) $(a)$ $1$ mol of $MnO_4^-$ to $Mn^{2+}$ $(p)$ $193000$ $C$ $(b)$ $1$ mol of $Cr_2O_7^{2-}$ to $Cr^{3+}$ $(q)$ $289500$ $C$ $(c)$ $1$ mol of $Sn^{4+}$ to $Sn^{2+}$ $(r)$ $482500$ $C$ $(d)$ $1$ mol of $Al^{3+}$ to $Al$ $(s)$ $579000$ $C$
| Column $I$ (Reduction process) | Column $II$ (Charge required) |
|---|---|
| $(a)$ $1$ mol of $MnO_4^-$ to $Mn^{2+}$ | $(p)$ $193000$ $C$ |
| $(b)$ $1$ mol of $Cr_2O_7^{2-}$ to $Cr^{3+}$ | $(q)$ $289500$ $C$ |
| $(c)$ $1$ mol of $Sn^{4+}$ to $Sn^{2+}$ | $(r)$ $482500$ $C$ |
| $(d)$ $1$ mol of $Al^{3+}$ to $Al$ | $(s)$ $579000$ $C$ |
Medium
View SolutionHow long would it take to reduce completely $80 \ mL$ of $0.1 \ M$ $Fe_2(SO_4)_3$ to $FeSO_4$ by passing a current of $2 \ A$?
Medium
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