Question # 1

The reaction will attain the equilibrium if:

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Qc<Kc

Qc > Kc

Qc = Kc

Qc = 0

In the preparation of insoluble salts, which one of the facts is incorrect?

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Two soluble salts are mixed

Two in soluble salts are mixed .

One of the salt produced is insoluble

Both of the salts produced are insoluble

The percentage of sun light absorbed by atmospheric gases is.

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2%

10%

18%

25%

Blast furnace usually used for the metallurgy of.

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Iron

Copper

Aluminum

Both a and b

Water has a maximum density at .

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10^oC

0^oC

4^oC

100^oC

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

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Chemical states

Static state

Physical state

Dynamic equilibrium state

Main component of natural gas is

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Methane

propane

Butane

Propene

Which acid used for food preservation?

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H₂SO₄

HNO₃

HCl

CH₃COOH

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Acid reacting with metal sulphides, liberate gas.

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Oxygen

Hydrogen

Hydrogen Sulphide

Hydrogen Oxide

When Bronsted and Lowry put forward acid base concept?

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1913

1923

1933

1943

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

The stratosphere layer is at height above the earth's surface.

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0-12 km

12-50 km

50-85 km

65-120 km

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