Question # 1

At equilibrium state, when reaction cases to proceed, it is called:

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equilibrium constant

dynamic equilibrium

static equilibrium

simple equilibrium

For a reaction between PCL₃ and Cl₂ to form PCl₅ the units of Kc are:

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Mol dm^-3

Mol^-1 dm^-3

Mol^-1dm³

Mol dm³

The unit of molar concentration is:

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moldm^-3

moldm⁺³

molcm^-3

molcm⁺³

At equilibrium state there are possibilities: OR types of chemical equilibrium are.

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1

2

3

4

Which colour of HI is ?

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Orange

Purple

Red

Colourless

At dynamic equilibrium state:

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Rate of forward reaction≠ Rate of reverse reaction

Rate of forward reaction > Rate of reverse reaction

Rate of forward reaction = Rate of reverse reaction

Rate of forward reaction < rate of reverse reaction

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.

Guldberg and waage out forward law of mass action in:

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1889

1879

1869

1859

Reactions which have comparable amounts of reactants and products at equilibrium state have:

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very small Kc value

Very large Kc value

Moderate Kc value

None of these

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