Question # 1

Process of heating the concentrated ore to high temperature in excess of air is called.

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Roasting

Smelting

Bessemerization

All

The dynamic equilibrium in irreversible reaction.

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Never establishes

Establishes after completion of reaction

Establishes before completion of reaction

Establishes very soon

The major components of Atmosphere are:

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Carbon and Nitrogen

Nitrogen and Oxygen

Oxygen and Chlorine

None of these

The reaction will attain the equilibrium if:

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Qc<Kc

Qc > Kc

Qc = Kc

Qc = 0

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

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

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Chemical states

Static state

Physical state

Dynamic equilibrium state

Which of the following gas is used in warfare?

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Methane

Ethane gas

Mustard gas

None of these

Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be

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Very small

Very large

Moderate

None of these

The % age of carbon in peat is :

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60%

70%

80%

90%

Which is used to remove the grease stains from clothes?

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NaOH

KOH

Al(OH)₃

NH₄OH

The reduction of alkyl halides takes place in the presence of

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Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

Atmosphere is divided into;

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3 regions

4 regions

5 regions

6 regions

|Which one is not an Arrhenius acid?

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HCl

H2SO₄

CO₂

HNO₃

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