Question # 1

K_c is always equal to

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Rf/Rr

Kf /Kt

Kf/Kr

Rr/Rt

The % age of nitrogen and oxygen in our atmosphere is:

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80

90

95

99

The dynamic equilibrium in irreversible reaction.

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Never establishes

Establishes after completion of reaction

Establishes before completion of reaction

Establishes very soon

The value of equilibrium constant (Kc) depends only on:

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temperature

Pressure

concentration

density

An equilibrium is achievable only in a:

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big system

small system

open system

closed system

When the magnitude of Kc is very large in indicates.

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Reaction never go to completion

Reaction is in equilibrium state

Reaction will complete after some time

Reaction has almost to completion

The reaction in which the products do not recombine to form reactants are called.

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Inversible reactions

Reversible reaction

Decomposition

Addition

When the numbers of moles of both sides are equal in a reaction, then the unit of K_c will be:

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No unit

mol^-2 dm⁶

mol dm³

mol^-2dm

Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be

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Very small

Very large

Moderate

None of these

The color of hydrogen Iodide is:

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Colourless

Black

Red

Pink

When the magnitude of Kc is very small it indicates.

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Equilibrium will never establish

All reactants will be converted to products.

Reaction will go to completion

The amount of products is negligible

Law of Mass Action was put forward by:

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G.N.Lewis

Lowry

Arrhenius

Gulbderg and Waage

Guldberg and waage out forward law of mass action in:

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1889

1879

1869

1859

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