Question # 1

An equilibrium is achievable only in a:

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big system

small system

open system

closed system

Which colour of HI is ?

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Orange

Purple

Red

Colourless

For which reaction Kf is the rate constant?

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Forward reaction

Backward reaction

Upward reaction

Downward reaction

Law of Mass Action was put forward by:

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G.N.Lewis

Lowry

Arrhenius

Gulbderg and Waage

Which type of reactions take place in both directions?

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Addition reactions

Reversible reactions

Irreversibel reactions

Decomposition reactions

The lives of aquatic plants and animals are indirectly related to concentration of dissolved ------ in water:

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hydrogen

oxygen

chlorine

nitrogen

The major components of Atmosphere are:

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Carbon and Nitrogen

Nitrogen and Oxygen

Oxygen and Chlorine

None of these

Which gas is used to prepare ammonia?

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N₂

O₂

Cl₂

S

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

The forward reaction takes place:

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Right to left

Left to Right

Only to right

Only to left

For reactions having large Kc value, the reaction proceeds to:

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Completion

Equilibrium state

back ward

None of these

In an irreversible reaction dynamic equilibrium:

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Never establishes

Established before the completion of reaction

Establishes after the completion of reaction

Establishes readily

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