CLASS 12 PHYSICS

                                                 ELECTRO CHEMISTRY TEST  Question 1. What is meant by ‘limiting molar conductivity’?  Question 2. Express the relation between conductivity and molar conductivity of a solution held in a cell.  Question 3 What is the effect of catalyst on: (i) Gibbs energy (ΔG) and (ii) activation energy of a reaction? (Delhi 2017) Question 4. Two half cell reactions of an electrochemical cell are given below : MnO – 4 (aq) + 8H +  (aq) + 5e –  → Mn 2+  (aq) + 4H 2 O (I), E° = + 1.51 V Sn 2+  (aq) → 4 Sn 4+  (aq) + 2e – , E° = + 0.15 V Construct the redox equation from the two half cell reactions and predict if this reaction favours formation of reactants or product shown in the equation.  Question 5 Express the relation among the cell constant, the resistance of the so...

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TEST SEMICONDUCTOR CLASS 12 semi conductor paper  

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