JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
The electrode potential of the following half cell at \(298\,K\) \(X \left| X ^{2+}(0.001 M ) \| Y ^{2+}(0.01 M )\right| Y\) is \(.......\times 10^{-2} V\) (Nearest integer). Given: \(E _{ x ^{2+} \mid x }^0=-2.36\,V\) \(E _{ Y ^{3+} \mid Y }^0=+0.36\,V\) \(\frac{2.303\,RT }{ F }=0.06\,V\)
- A \(274\)
- B \(273\)
- C \(272\)
- D \(275\)
Answer & Solution
Correct Answer
(D) \(275\)
Step-by-step Solution
Detailed explanation
\(X + Y ^{2+} \rightarrow Y + X ^{2+}\) \(E _{\text {Cell }}^0=0.36-(-2.36)=2.72\,V\) \(E _{\text {Cell }}=2.72-\frac{0.06}{2} \log \frac{0.001}{0.01}\) \(=2.72+0.03=2.75\,V\) \(=275 \times 10^{-2}\,V\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Given below are two statements : Statement\(-I :\, 2 -\)methylbutane on oxidation with \(KMnO _{4}\) gives \(2 -\)methylbutan\(-2-\)ol. Statement\(-II :\) \(n-\)alkanes can be easily oxidised to corresponding alcohol with \(KMnO _{4}\). Choose the correct option:JEE Mains 2021 Medium
- At \(600\,K , 2\,mol\) of \(NO\) are mixed with \(1 mol\) of \(O _{2}\). \(2 NO _{( g )}+ O _{2}( g ) \rightleftarrows 2 NO _{2}( g )\) The reaction occurring as above comes to equilibrium under a total pressure of 1 atom. Analysis of the system shows that \(0.6 mol\) of oxygen are present at equilibrium. The equilibrium constant for the reaction is \(.........\)(Nearest integer).JEE Mains 2022 Medium
- The \(\alpha\)-Helix and \(\beta\) - Pleated sheet which structures of protein are associated with its?JEE Mains 2025 Easy
- Phenol on reaction with dilute nitric acid, gives two products. Which method will be most effective for large scale separation ?JEE Mains 2022 Medium
- When a small amount of \(KMnO_4\) is added to concentrated \(H_2SO_4\), a green oily compound is obtained which is highly explosive in nature. Compound may beJEE Mains 2013 Medium
- The correct increasing order of spin-only magnetic moment values of the complex ions
\([MnBr_{4}]^{2-}\) (A), \([Cu(H_{2}O)_{6}]^{2+}\) (B), \([Ni(CN)_{4}]^{2-}\) (C) and \([Ni(H_{2}O)_{6}]^{2+}\) (D) is:JEE Mains 2026 Medium
More PYQs from JEE Mains
- Let one focus of the hyperbola \(\mathrm{H}: \frac{\mathrm{x}^2}{\mathrm{a}^2}-\frac{\mathrm{y}^2}{\mathrm{~b}^2}=1\) be at \((\sqrt{10}, 0)\) and the corresponding directrix be \(\mathrm{x}=\frac{9}{\sqrt{10}}\). If e and \(l\) respectively are the eccentricity and the length of the latus rectum of H , then \(9\left(\mathrm{e}^2+l\right)\) is equal to:JEE Mains 2025 Medium
- For the reaction \(\mathrm{A}(l) \rightarrow 2 \mathrm{B}(\mathrm{g})\) \(\Delta \mathrm{U}=2.1\; \mathrm{kcal}, \Delta \mathrm{S}=20\; \mathrm{cal} \mathrm{K}^{-1}\) at \(300\; \mathrm{K}\) Hence \(\Delta \mathrm{G}\) in \(\mathrm{kcal}\) isJEE Mains 2020 Hard
- An electromagnetic wave is represented by the electric field \(\vec E = {E_0}\hat n\,\sin \,\left[ {\omega t + \left( {6y - 8z} \right)} \right]\). Taking unit vectors in \(x, y\) and \(z\) directions to be \(\hat i,\hat j,\hat k\) ,the direction of propogation \(\hat s\), isJEE Mains 2019 Medium
- Carbylamine forms from aliphatic or aromatic primary amine via which of the following intermediates ?JEE Mains 2013 Hard
- The shortest distance between the \(z-\) axis and the line \(x + y + 2z - 3\, = 0 \,= 2x + 3y + 4z - 4\), isJEE Mains 2015 Hard
- If a random variable \(X\) follows the Binomial distribution \(B (33, p )\) such that \(3 P ( X =0)= P ( X =1)\), then the value of \(\frac{ P ( X =15)}{ P ( X =18)}-\frac{ P ( X =16)}{ P ( X =17)}\) is equal toJEE Mains 2022 Hard