Question # 1

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

Main component of natural gas is

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Methane

Propane

Butane

Propene

The strong heating of coal in the absence of air is called.

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Carbonization

Destructive distillation

Fractional distillation

All

When the reaction causes to produced it is called.

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Chemical equlibrium state

Static equilibrium

Dynamic equilibriiun

All

Percentage of methane present in natural gas is.

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75%

80%

85%

90%

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

pH of neutral solution is always.

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6

5

7

10

Basic solution have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

Who proposed "Law of mass action"?

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Newton

Boyle

Guldberg and waage

Lavoisier

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Manufacturing of urea involves:

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2 steps

3 steps

4 steps

5 steps

The coal in which the percentage of carbon is 60%

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Peat

Lignite

Bituminous

Anthracit

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