Question # 1

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

For which reaction Kf is the rate constant?

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Forward reaction

Backward reaction

Upward reaction

Downward reaction

Which chemical is called king of chemicals?

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KNO₃

H₂SO₄

HCl

NHO₃

In a chemical reaction, the substance that combine are called.

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Reactant

Products

Mass

Material

In a Reversible Reaction if Qc = Kc then.

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Reaction is occuring in forward direction

Reaction is occuring in Reverse direction

Equilibrium has been allained

Reaction is not at equilibrium

If Qc = Kc the reaction goes in:

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Forward

Reverse

At equilibrium state

None

K_c is always equal to

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Rf/Rr

Kf /Kt

Kf/Kr

Rr/Rt

When the reaction causes to produced it is called.

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Chemical equlibrium state

Static equilibrium

Dynamic equilibriiun

All

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

Equilibrium constant value "K" is equal to:

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Kt / Kr

Ki / Kr

Kc / Qc

Qc /Kc

The two major components of atmosphere are:

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Hydrogen and oxygen

Nitrogen and Hydrogen

Nitrogen and oxygen

Oxygen and water.

The plant use

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Carbon di oxide

Oxygen

Nitrogen

Sulphur

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Chemistry 10th Class English Medium Unit 9 Online Test MCQs With Answers

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