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JEE 2020 Chemistry Revision Quiz :Electrochemistry
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Question 1
Given that the cell Pt(H2) (1 atm) | H+ || I– (a = 1) | AgI(s), Ag
has emf, E298K = 0. The standard electrode potential of the reaction
AgI + e–→ Ag + I– is – 0.151 V.
Calculate the solubility products of AgI in water at 25 ºC [
= + 0.799 Volt] -
Question 2
During the preparation of H2S2O8 (per disulphuric acid) O2 gas also releases at anode as byproduct, When 9.72 L of H2 releases at cathode and 2.35 L O2 at anode, the weight H2S2O8 produced in gram is -
Question 3
0.3605 g of a metal is deposited on the electrode by passing 1.2 A of current for 15 minutes through its salt. Atomic weight of metal is 96. What is its valency?
Question 4
What is true for the given cell setup?
Question 5
On industrial scale sodium metal is prepared by electrolysis of fused:
Question 6
The Clark cell Zn|Zn2+// Hg2SO4|Hg is often employed as a standard cell since its emf is known exactly as a function of temperature. The cell emf is 1.423 V at 298 K and its temperature coefficient of voltage is -1.2 × 10-4 V K-1. What is ∆Scell at 298 K?
Question 7
Given the equilibrium constant KC of the reaction
is 
, calculate the 
of this at 298 K
is , calculate the of this at 298 K Question 8
Correct representation of lead storage cell is:
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Dec 4JEE & BITSAT
