CUET · CHEMISTRY · PYQ PAPER 2025

The correct cell representation for the following reaction is
\(Mg(s)+2 Ag^{+}(0.0001 M) \rightarrow Mg^{2+}(0.130 M)+2 Ag(s)\)

A \(Mg (s)\left| Mg ^{2+}(0.130 M )\right|\left| Ag ^{+}(0.0001 M )\right| Ag (s)\)
B \(Mg (s)\left\| Mg ^{2+}(0.130 M ) \mid Ag ^{+}(0.001 M )\right\| Ag (s)\)
C \(Mg (s)\left| Mg ^{2+}(0.130 M )\right|| Ag (s)| Ag ^{+}(0.0001 M )\)
D \(Mg ^{2+}(0.130 M )| Mg (s) \| Ag (s)| Ag ^{+}(0.0001 M )\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(Mg (s)\left| Mg ^{2+}(0.130 M )\right|\left| Ag ^{+}(0.0001 M )\right| Ag (s)\)

Step-by-step Solution

Detailed explanation

\(Mg (s)\left| Mg ^{2+}(0.130 M )\right|\left| Ag ^{+}(0.0001 M )\right| Ag (s)\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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List - I (Common Name)	List - II (IUPAC name)
(A) Aniline	(I) N-Phenylethanamide
(B) Acetanilide	(II) Benzenamine
(C) Sulphanilic acid	(III) Prop-2-en-1-amine
(D) Allylamine	(IV) p-aminobenzene sulphonic acid

LIST I	LIST II
A. Carbohydrates	I. Amide linkage
B. Proteins	II. Ester linkage
C. Nucleic acids	III. Ether linkage
D. Lipids	IV. phosphodiester linkage

The correct cell representation for the following reaction is\(Mg(s)+2 Ag^{+}(0.0001 M) \rightarrow Mg^{2+}(0.130 M)+2 Ag(s)\)

Step-by-step Solution

The correct cell representation for the following reaction is
\(Mg(s)+2 Ag^{+}(0.0001 M) \rightarrow Mg^{2+}(0.130 M)+2 Ag(s)\)