Four faradays of electricity were passed through ${A g N O}_{3}$ , ${C d S O}_{4}$ , ${A I C I}_{3}$ and ${P b C I}_{4}$ kept in four vessels using insert electrodes. The ratio of moles of Ag, Cd, AI and Pb deposited will be ?

12 : 4 : 6 : 3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1 : 2 : 3 : 4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12 : 6 : 4 : 3

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

4 : 3 : 2 : 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 12 : 6 : 4 : 3
$A g N O_{3} ⟶ A g^{+} + N O_{3}^{-} C d S O_{4} ⟶ C d^{2 +} + {(S O_{4})}^{2 -} A l C l_{3} ⟶ A l^{3 +} + 3 C l^{-} P b C l_{4} ⟶ P b^{4 +} + 4 C l^{-}$
It requires $1 F$ of current to deposit $1$ mol of $A g$ .
Similarly $2 F$ of current to deposit $1$ mol of $C d .$
$3 F$ of current to deposit $1$ mol of $A l .$
$4 F$ of current to deposit $1$ mol of $P b .$
When $4$ faradays of electricity were passed,
moles of $A g$ diposited $= \frac{4}{1} = 4 m o l .$
moles of $C d$ diposited $= \frac{4}{2} = 2 m o l .$
moles of $A l$ diposited $= \frac{4}{3} m o l .$
moles of $l e a d$ diposited $= \frac{4}{4} = 1 m o l .$
$t h e r e f o r e$ Ratio of moles of $A g, C d, A l, P b$ will be $4 : 2 : \frac{4}{3} : 1$
$= 12 : 6 : 4 : 3.$

Suggest Corrections

Similar questions

Four faradays of electricity were passed through AgNO₃ (l), CdSO₄(l), AlCl₃(l), & PbCl₄(l) kept in four vessels using inert electrodes. The ratio of moles of Ag, Cd, Al,& Pb deposited will be

A. 12 : 4 : 6 : 3

B.12 : 6 : 4 : 3

Q. Four faradays of electricity were passed through

A g N O_{3} (l), C d S O_{4} (l), A l C l_{3} (l) and P b C l_{4} (l)

kept in four vessels using inert electrodes. The ratio of moles of

A g, C d, A l

and

P b

deposited will be:

Q. Three faraday of electricity is passed through molten solutions of

A g N O_{3}, N i S O_{4}

and

C r C l_{3}

kept in three vessels using inert electrodes. The ratio in mol in which the metals

A g, N i

and

C r

will be deposited in:

Three faraday of electricity is passed through three electrolytic cells connected in series containing $A g^{+}, C a^{2 +}$ and $A l^{3 +}$ ions respectively. The molar ratio in which the three metal ions are liberated at the electrodes is:

Q. If three Faraday of electricity is passed through the solutions of

A g {N O}_{3}, C u {S O}_{4}

and

A u {C l}_{3}

, the molar ratio of the metals deposited at the cathode will be:

Join BYJU'S Learning Program

Four faradays of electricity were passed through AgNO3, CdSO4, AICI3 and PbCI4 kept in four vessels using insert electrodes. The ratio of moles of Ag, Cd, AI and Pb deposited will be ?

Four faradays of electricity were passed through ${A g N O}_{3}$ , ${C d S O}_{4}$ , ${A I C I}_{3}$ and ${P b C I}_{4}$ kept in four vessels using insert electrodes. The ratio of moles of Ag, Cd, AI and Pb deposited will be ?