JEE Main 2021 (Online) 26th February Morning Shift | Equilibrium Question 72 | Chemistry

JEE Main 2021 (Online) 26th February Morning Shift

Numerical

-1

A homogeneous ideal gaseous reaction $$A{B_{2(g)}} \rightleftharpoons {A_{(g)}} + 2{B_{(g)}}$$ is carried out in a 25 litre flask at 27$$^\circ$$C. The initial amount of AB₂ was 1 mole and the equilibrium pressure was 1.9 atm. The value of K_p is x $$\times$$ 10^$$-$$2. The value of x is _________. (Integer answer)

[R = 0.08206 dm³atm K^$$-$$1mol^$$-$$1]

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JEE Main 2021 (Online) 24th February Evening Slot

Numerical

-1

The solubility product of PbI₂ is 8.0 $$\times$$ 10^$$-$$9. The solubility of lead iodide in 0.1 molar solution of lead nitrate is x $$\times$$ 10^$$-$$6. mol/L. The value of x is __________. (Rounded off to the nearest integer) [Given $$\sqrt 2 $$ = 1.41]

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JEE Main 2021 (Online) 24th February Evening Slot

Numerical

-1

Assuming ideal behaviour, the magnitude of log K for the following reaction at 25$$^\circ$$C is x $$\times$$ 10^$$-$$1. The value of x is _________. (Integer answer)

$$3HC \equiv C{H_{(g)}} \rightleftharpoons {C_6}{H_{6(l)}}$$

[Given : $${\Delta _f}{G^o}(HC \equiv CH) = - 2.04 \times {10^5}$$ J mol^$$-$$1 ; $${\Delta _f}{G^o}({C_6}{H_6}) = - 1.24 \times {10^5}$$ J mol^$$-$$1 ; R = 8.314 J K^-1 mol^$$-$$1]

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JEE Main 2021 (Online) 24th February Morning Slot

Numerical

-1

The stepwise formation of $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$ is given below:

JEE Main 2021 (Online) 24th February Morning Slot Chemistry - Equilibrium Question 79 English

JEE Main 2021 (Online) 24th February Morning Slot Chemistry - Equilibrium Question 79 English

The value of stability constants K₁, K₂, K₃ and K₄ are 10⁴, 1.58 x 10³, 5 x 10² and 10² respectively.
The overall equilibrium constants for dissociation of $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$ is x $$ \times $$ 10^-12.
The value of x is ________. (Rounded off to the nearest integer)

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