Question # 1

Ozone has a smell

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Bitter

Rotten egg

Sweat

None of them

The elements that do not conduct heat and electricity are called.

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Metallurgy

Non metal

Metalloid

Alloy

Which one of the not metal.

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Copper

Carbon

chromium

Iron

When a system is at equilibrium states?

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The concentration of reactants and products becomes equal

The opposing reactions

The rate of the reverse reaction becomes very low

The rates of the forward and reverse reactions becomes equal.

Atmospheric region found between 50-58 km from the earthis.

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Thermosphere

Stratosphere

Mesophere

Thermosphere

How many units are in Pakistan for manufacturing of Urea.

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3

6

9

12

Which gas is used to manufacture king of chemicals sulphuric acid?

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N₂

O₂

Cl₂

S

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Which of the following thing is a lewis base?

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NH₃

BF₃

H⁺

AlCl₃

What is pOH of 0.01 M solution of KOH?

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3

11

2

4

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

Which is present 85% in natural gas?

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Ethane

Propane

Methane

Butane

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

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