Chemistry Questions with solution, you have any book for this pl confirm & cost of book, Plz bro questions are dope but i need clr solutions even i cant solve it, Need some more questions plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz, Download India's Leading JEE | NEET | Class 9,10 Exam preparation app, Electrochemistry – JEE Main Previous Year Questions with Solutions. 4.5. $\mathrm{E}_{\mathrm{Fe}^{-3} / \mathrm{Fe}}^{\circ}=-0.036 \mathrm{V}, \quad \mathrm{E}_{\mathrm{Fe}^{-2} / \mathrm{Fe}}^{\circ}=-0.439 \mathrm{V}$. Class 12 Chemistry Electrochemistry have different set of questions. In this Class, Shikha Munjal will cover some Important Questions and previous year's questions on Electrochemistry. The value of standard electrode potential for the change. The standard reduction potentials for $\mathrm{Zn}^{2+} / \mathrm{Zn}, \mathrm{Ni}^{2+} / \mathrm{Ni}$ and $\mathrm{Fe}^{2+} / \mathrm{Fe}$ are $-0.76,-0.23$ and – 0.44 V respectively. Electrochemistry JEE Main previous year questions and solutions are given in this article. The session will be conducted in Hindi and the notes will be … Galvanization is applying a coating of. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. (2) $\mathrm{p}\left(\mathrm{H}_{2}\right)=2$ atm and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$ (4) X = Fe, Y = Zn Vivek SK. AIEEE 2010 (Atomic weight of B = 10.8 u) Practicing JEE Advanced Previous Year Papers Questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas. Previous Year & Mock Questions. Save. JEE Main Previous Year Papers Questions of Chemistry with Solutions are available at eSaral. SHOW SOLUTION Scroll below to select your subject or search year wise question papers. And also provide detail solutions, Sir , I want to purchase previous years IIT JEE Chapter wise. In a hydrogen-oxygen fuel cell, combustion of hydrogen occurs to (a) generate heat (b) create a potential difference between the two electrodes (c) produce high purity water (d) remove adsorbed oxygen from the electrode surface. AIEEE 2011 The specific conductance of the solution is 1.3 S $\mathrm{m}^{-1}$. SHOW SOLUTION If φ denotes reduction potential, then which is true? 1.Conductivity (unit Siemen’s S) is directly proportional to area of the vessel and the concentration of the solution in it and is inversely proportional to the length of the vessel then the unit of the constant of proportionality is (2002) MCQ (Previous Year Questions) - Electrochemistry (Level 2) MCQ of Electrochemistry. (1)0.8 hours (1) Cl– (4) cathode to anode and anode to cathode 8. For spontaneous reaction $\mathrm{E}^{\circ}>0 \mathrm{so}(\mathrm{A})$, For spontaneous reaction $\mathrm{E}^{\circ}>0 \mathrm{so}(\mathrm{A})$. $966 \times 10^{3}=4 \times 96500 \times \mathrm{E} \Rightarrow \mathrm{E}=2.5 \mathrm{V}$, $\frac{2}{3} \mathrm{Al}_{2} \mathrm{O}_{3} \longrightarrow \frac{4}{3} \mathrm{Al}+\mathrm{O}_{2}, \mathrm{AG}=+966 \mathrm{KJ} \mathrm{mol}^{-1}$ The potential difference needed for electrolytic reduction of $\mathrm{Al}_{2} \mathrm{O}_{3}$ at $500^{\circ} \mathrm{C}$ is at least :-, (1) 5.0 V      (2) 4.5 V       (3) 3.0 V         (4) 2.5 V, $966 \times 10^{3}=4 \times 96500 \times \mathrm{E} \Rightarrow \mathrm{E}=2.5 \mathrm{V}$, Q. Important Questions for CBSE Class 12 Chemistry Electrochemistry Previous Years’ Questions. The correct relationship between $\lambda_{\mathrm{C}}$ and $\lambda_{\infty}$ is given as: (4) (3) $\lambda_{\mathrm{C}}=\lambda_{\infty}+(\mathrm{B}) \mathrm{C}$ (2) $\mathrm{Mn}^{2+}$ If resistance of the 0.4M solution of the same electrolyte is $260 \Omega$, its molar conductivity is :-, The reduction potential of hydrogen half-cell will be negative if :-, The standard reduction potentials for $\mathrm{Zn}^{2+} / \mathrm{Zn}, \mathrm{Ni}^{2+} / \mathrm{Ni}$ and $\mathrm{Fe}^{2+} / \mathrm{Fe}$ are $-0.76,-0.23$ and – 0.44 V respectively. Higher the SRP, stronger will be oxidising agent Calculate the standard cell potential (in V) of the cell in which the following reaction takes place. Given : How much charge in Faraday is required for the reduction of 1 mol of Ag + to Ag? JEE-Mains 2014 (4) $\mathrm{Cl}^{-}$ (1) $\mathrm{p}\left(\mathrm{H}_{2}\right)=2 \operatorname{atm}\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$ How many moles of Ni will be deposited at the cathode? (1) $6250 \mathrm{Sm}^{2} \mathrm{mol}^{-1}$ (at. JEE-Mains 2015 Q. (c) Corrosion of iron can be minimized by forming an impermeable barrier at its surface. Multiple Choice Questions (Type-I) Electrolytic cells are those in which a non-spontaneous reaction is controlled by an external source of electric current. Save my name, email, and website in this browser for the next time I comment. (d) Iron corrodes more rapidly in saltwater because its electrochemical potential is higher. Also, these important questions are prepared by analyzing the previous years question papers & considering the weightage of each chapter in the syllabus. Q. JEE Main Previous Year Solved Questions on Electrochemistry . There are many more useful educational material which the students can download in pdf format and use them for studies. The correct relationship between $\lambda_{\mathrm{C}}$ and $\lambda_{\infty}$ is given as: At 298 K, the standard reduction potentials are 1.51 V for $\mathrm{MnO}_{4}-| \mathrm{Mn}^{2+}$ , 1.36 V for $\mathrm{Cl}_{2} | \mathrm{Cl}^{-}$, 1.07 V for $\mathrm{Br}_{2} | \mathrm{Br}^{-},$ and $0.54 \mathrm{V}$ for $\mathrm{I}_{2} | \mathrm{I}^{-} .$ At $\mathrm{pH}=3$, permanganate is expected to oxidize $\left(\frac{\mathrm{RT}}{\mathrm{F}}=0.059 \mathrm{V}\right):-$, A variable, opposite external potential $\left(\mathrm{E}_{\mathrm{ext}}\right)$ is applied to the cell. (1) 0.770 V (2) –0.27 V (3) –0.072 V (4) 0.385 V When during electrolysis of a solution of AgN03 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be, 15. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. The reduction potential of hydrogen half-cell will be negative if :- BYJU’S provides accurate solutions created by our subject experts. info@entrancei.com Q. 6. If resistance of the 0.4M solution of the same electrolyte is $260 \Omega$, its molar conductivity is :- Practicing JEE Main chapter wise questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas. (3) $\mathrm{Br}^{-}$ and $\mathrm{I}^{-}$ Is electrolysed between platinum electrodes using 0.1 Faraday electricity conductance of the reaction at 25°C will discussed... Between the Two electrodes, Mayur Vihar, Phase-1, Central Market, New.. So Cr is the best reducing agent which a non-spontaneous reaction is controlled by an external source electric! As electrodes in contact with an ionic conductor i.e Mn because of the cell in students! Notes of Electrochemistry are energy effective and less polluting V at 25°C stage of their preparations will:... 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