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JEE 2021 | Equilibrium

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Question 1

Reaction A+B C+D is a reversible reaction which means if we start with A + B we get C + D and if we start with C + D we get A + B.

Given that when A+B C+D, Δ G = - ve, when we start with A and B.

What will be Δ G for the reaction C+D A+B if we start with C and D.

Question 2

Statement-1: Oxidation potential for (Pt) H2/NH4OH(1M) electrode is greater than

(Pt) H2/CH3COOH (1M) electrode.

Statement-2: Higher is the [H+] in anode compartment greater is oxidation potential

for corresponding hydrogen electrode.

Question 3

The concentration of Cd2+ in a solution in equilibrium with a precipitate of cadmium sulphide is found to be 4 times greater than the molar concentration of the S2-. Find out the concentration of Cd+2 Ksp of CdS is 6 .4 × 10-27.

Question 4

The reaction is Fe2+ + Ag+ Fe3+ + Ag. The equilibrium constant at 25oC for the reaction (Given: =0.799 volt and =0.771volt) is

Question 5

If Ksp of Ag2CO3 is 8 × 10–12, the molar solubility of Ag2CO3 in 0.1 M AgNO3 is :

Question 6

Consider the following reversible chemical reaction :


The relation between K1 and K2 is :

Question 7

For the reaction in equilibrium,

If when initial pressure of NOCl is 80 atm, then total pressure(in atm) at equilibrium is

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Mar 22JEE & BITSAT