List of top Chemistry Questions on Equilibrium asked in NEET (UG)

Consider the following reaction in a sealed vessel at equilibrium with concentrations of
N₂ = 3.0 × 10^–3 M, O₂ = 4.2 × 10^–3 M and NO = 2.8 × 10^–3 M.
2NO_(g)⇋N2(g) + O_2(g) 
If 0.1 mol L^–1 of NO_(g) is taken in a closed vessel, what will be degree of dissociation (a) of NO_(g) at equilibrium?

For a cell involving one electron \(E^\ominus cell=0.59V\) at 298 K, the equilibrium constant for the cell reaction is: [Given that \(\frac{ 2.303 RT }{F}\) \(=0.059 V\) at\( T 298 K \)] 

KMnO₄ can be prepared from K₂MnO₄ as per the reaction:
\(3MnO^{2-}_4+2H_2O⇌2MnO^-_4+MnO_2+4OH^-\)
The reaction can go to completion by removing OH^- ions by adding

H₂S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because:

The correct order of acid strength is

What is the correct relationship between the pH_s of isomolar solutions of sodium oxide (pH₁),sodium sulphide (pH₂),sodium selenide (pH₃) and sodium telluride (pH₄)?

Equilibrium constants K₁ and K₂ for the following equilibria: NO_(g)+\(\bigg(\frac{1}{2}\bigg)\)O₂ \(^{K_1}_\rightleftharpoons\) NO₂(g) and 2NO_2(g) \(^{K_2}_\rightleftharpoons\) 2NO_(g)+O_2(g) are related as:

The solubility product of AgI at 25ºC is 1.0×10^–16 mol²L^–2. The solubility of AgI in 10^–4N solution of KI at 25ºC is approximately (in mol L^–1):

The reaction quotient (Q) for the reaction \(N_2(g) + 3H_2(g)⇋2NH_3(g)\) is given by \(Q =\frac { [NH_3]^2}{[N_2][H_2]^3}\). The reaction will proceed from right to left if: (where K_C is the equilibrium constant)

For a any reversible reaction. If increases concentration of reactants. Then effect on equilibrium constant:

Correct relation b/w dissociation constant's of a di-basic acid: