Question # 1

Which type of reactions do not go to completion?

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Irreversible reaction

Reversible reactions

Addition reactions

Decomposition reactions

When a reaction ceases to proceed further , it is called.

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Chemical states

Static state

Physical state

Dynamic equilibrium state

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 reactions in which products can recombine to form reactants is called.

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Irreversible reactions

Reversible reactions

Direct reactions

Indirect reactions

A dynamic equilibrium

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Reaction stops to proceed

Amounts of reactants and products are equal

Rate of forward and reverse reaction are equl

Reaction can no longer be reversed.

The color of Iodine is:

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Purple

Black

Red

Pink

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

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Completion

Equilibrium state

back ward

None of these

At dynamic equilibrium:

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The reactions stops to proceed

The amounts of reactants and products are equal

The speed of the forward is reverse reactions are equal

The reaction can no longer be reversed

Who proposed "Law of mass action"?

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Newton

Boyle

Guldberg and waage

Lavoisier

Which types of reaction speed up gradually?

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Irreversible reactions

Reversibel reactions

Forward reactions

Decomposition reactions.

The reaction in which the number of moles reactants and products not equal in balance chemical equation the units of Kc for this reactions are

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mol^-2

dm³

mol²

mol dm^-1

Guldberg and waage out forward law of mass action in:

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1889

1879

1869

1859

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

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