Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 20248 AprilEvening Shift
Exam
JEE Main
Year
2024
Date
8 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Electrochemistry

JEE Main 2024 · 8 April · Evening Shift · Chemistry · Electrochemistry

The reaction; ((1)/(2) H_ 2(~g) +AgCl_ (s) arrow H_ (aq) ^ + +Cl_...

The reaction; (\frac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}) occurs in which of the following galvanic cell :

Options

  1. A(\mathrm{Ag}\left|\mathrm{AgCl}_{(\text{s) }}\right| \mathrm{KCl}_{\text{(soln.) }}\left|\mathrm{AgNO}_{3 \text{ (aq.) }}\right| \mathrm{Ag})
  2. B(\mathrm{Pt}\left|\mathrm{H}_{2(\mathrm{ g})}\right| \mathrm{HCl}_{\text{(soln.) }}\left|\mathrm{AgCl}_{(\mathrm{s})}\right| \mathrm{Ag})
  3. C(\mathrm{Pt}\left|\mathrm{H}_{2(\mathrm{ g})}\right| \mathrm{KCl}_{(\text{soln. })}\left|\mathrm{AgCl}_{(s)}\right| \mathrm{Ag})
  4. D(\mathrm{Pt}\left|\mathrm{H}_{2(\mathrm{ g})}\right| \mathrm{HCl}_{\text{(soln.) }}\left|\mathrm{AgNO}_{3(\mathrm{aq})}\right| \mathrm{Ag})

Correct answer

C. (\mathrm{Pt}\left|\mathrm{H}_{2(\mathrm{ g})}\right| \mathrm{KCl}_{(\text{soln. })}\left|\mathrm{AgCl}_{(s)}\right| \mathrm{Ag})

Step-by-step solution

Anodic half cell  Gas - gas ion electrode ‾12H2( g)→H(aq)++e−\underline{\text{ Gas - gas ion electrode }} \frac{1}{2} \mathrm{H}_{2(\mathrm{~g})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{e}^{-} Cathodic Reaction Metal-metal insoluble salt anion electrode Ag(aq)++e−→Ag(s)\mathrm{Ag}_{(\mathrm{aq})}^{+}+\mathrm{e}^{-} \rightarrow \mathrm{Ag}_{(\mathrm{s})}AgCl(s)⇌Ag(aq)++Cl(aq)−AgCl(s)+e−→Ag(s)+Cl(aq)−\begin{aligned} & \mathrm{AgCl}_{(\mathrm{s})} \rightleftharpoons \mathrm{Ag}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-} \\ & \mathrm{AgCl}_{(\mathrm{s})}+\mathrm{e}^{-} \rightarrow \mathrm{Ag}_{(\mathrm{s})}+\mathrm{Cl}_{(\mathrm{aq})}^{-}\end{aligned}$OverallredoxreactionOverall redox reaction\frac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}CellRepresentationPtCell Representation Pt\left|\mathrm{H}_{2(\mathrm{~g})}\right| \mathrm{kCl}_{\text{(sol) }}\left|\mathrm{AgCl}_{\text{(s) }}\right| \mathrm{Ag}$
Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

At 300 K, the molar conductivities of the aqueous solutions of three salts at two… JEE Advanced 2026Given at 298 K: E^ _ Fe^ 2+ /Fe = X Volt; E^ _ Fe^ 3+ /Fe = Y Volt. The E^ _ Fe^ 3+ /Fe^… JEE Main 2026For a general redox reaction Anode : Red_1 arrow Ox_1^ n_1^+ + n_1 e^- Cathode : Ox_2 +… JEE Main 2026Consider the following data. Electrolyte Λ^ ∘ _m (S cm ^2 mol ^ -1 ) BaCl_2 x_1 H_2SO_4… JEE Main 2026One half cell in a voltaic cell is constructed by dipping silver rod in AgNO_3 solution… JEE Main 2026At 298 K , the molar conductivity of x\% (w/w) MX solution (aqueous) is 123.5 S cm^2 mol^… JEE Main 2026An electrochemical cell, consist of the following two redox couples, M^ x+ (aq)/M(s) [E_… JEE Main 2026Consider the following two half-cell reactions along with the standard reduction… JEE Main 2026 Full Electrochemistry list All JEE Main PYQs