Question # 1

The mechanism of polymerization involves free addition Polymerization or condensation polymerization, Choose the correct statement:

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Polyester is an addition polymer

polythene is an addition polymer

polyviny chloride (PVC) is a condensation polymer

Polystyrene

Major cause of SO2 on global scale is

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Volcanoes

Electric sparks

Combustion

All

Which pair of following pair is metalloid?

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Antimony and bismuth

Phosphorous and arsenic

Nitrogen and phosphorous

Arsenic and antimony

The reaction which is zero order

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Decomposition ofN2O5

Formation of Glucose in plant

Formation of Fel2

Chorination of methane in sunlight

The intramolecular forces in gases are:

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Weak.

Normal.

Very weak.

Strong.

Which one of the following is a disaccharide?

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glucose

sucrose

fructose

starch

What is effect of polluted air on enviroment:

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Ozone

Global warming

Acid rain

Smog

Phenol can be diatingushed from ethyl alcohol by all of the following reagents except

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lodoforrn test

Na

Br2 /H2O

NaOH

NO. of naturally occuring aminoacids is

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10

20

30

40

Vapour pressure of a substance does not depend upon:

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physical state of matter

temperature

intermolecular forces

surface area

In which of the following Equilibria will Kc and Kp have not the same value

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2HI <--------> H2+I2

2SO2 + O2 <--------> 2SO3

N2 + O2 <---------> 2NO

All of these

The raw materials for the manufacture of urea fertilizer is

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Hydrogen and ammonia

Steam, methane, ammonia

Methane and air

None of these

Analytical chemistry is the science of :

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Chemical Characterization.

Physical Characterization.

Biological Characterization.

Biochemical Characterization.

Result of ozone hole is

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Green house effect

Global warming

Acid rain

UV rays reach the earth

Fluted filter paper is used to :

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Decrease rate of filtration.

Increase rate of filtration.

Maintain rate of filtration.

None of above.

The movement of solvent molecules through a semipermeable membrane is called

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Electrolysis

Electrophoresis

Osmosis

Cataphoresis

Mild oxidation of glycerol with H₂O₂/FeSO₄gives

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Glyceraldehyde

Dihydroxy acetone

Glycerose

None

Homologues differ from each other by an integral number of

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CH₂groups

CH₃groups

CH groups

CH₄groups

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

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Nitric oxide

Nitrous oxide

Nitrogen dioxide

Dinitrogen tetraoxide

Termochemistry is the study of chemical reaction accompanying

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Heat change

Rate change

Mass change

Volume change

Alcohols, phenols and ethers may be considered as derivative of

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Hydrocarbons

Benzene

Carboxylic acid

Water

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8 g

16 g

32 g

24 g

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