Question # 1

A graph between P and PV constant temperature and number of moles is parallel to:

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Y-axis

X-axis

Z-axis

Pressure axis

If V₁= 5 litres, P₁= 2 atm, T₁= T₂= 273°C and V₂= in liter

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5

80

125

10

Always carboxylic acid produced will have number of carbon atoms from carbon atom in alkyl nitriles:

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One more

Two more

Equal & same

One less

Which one is monosacharide?

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starch

glucose

maltose

sucrose

The scale of temperature that shows the freezing point of water at 0° is called

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Fahrenheit

Kelvin

absolute

Celsius

Carbon-Carbon double bond length in C3H6

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154 pm

134 pm

120 pm

105 pm

Which of the following molecule has zero dipole moment?

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PCI3

BF3

NH3

H2O

Which of the following is not a charbohydrate

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Nuclic acid

Starch

Glycoyen

Cellulose

Substance that does not show the process of sublimation is

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K2Cr2O7

iodine

naphthalene

NH4CI

Detergent greatly effects the

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Aquatic life

Modern life

Terrestrial life

Plants life

In which of the following processes are small organic molecules made into macromolecules

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethene

The hydrolysis of protein

The structure of benzene is

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Hexagonal

Pyramidal

Square planer

Tetrahedral

______ is used in breathing equipments for mountaineers and in space craft

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Li₂O

BeO

N₂

KO₂

Which of the following is not true for metalloids

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They are borderline elements that exhibit both metallic and non-metallic properties to some extent

They usually act as electron donors with non-metals and as electron acceptors with metals

Some of these elements are boron, silicon and germanium

They are good conductors of heat and electricity

Calcium carbide reacts with water to produce

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Acetylene

Methane

Ethylene

Ethane

Substituted phenyl groups are called

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acyl groups

phenyl groups

Aryl groups

Alkyle groups

The specific conductance of 0.1 M NaCl solution is 1.06 x 10^-2ohm^-1mol^-1. Its molar conductance in ohm^-1cm²mol^-1is

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1.06 x 10²

1.06 x 10³

1.06 x 10⁴

53

which one of the following is not a nucleophile?

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H₂O

H₂S

BF₃

NH₃

Two elements whose electronegativities are 1.2 and 3.0, the formed between them would be

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Ionic

Covalent

Coordinate

Metallic

The atom of an element is

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The smallest particle

The fundamental particle

The independent particle

The charged particle

The main source of natural fibre is

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Animal fibres

Vegetables fibres

Mineral fibres

All of the above

Benzene does not undergo polymerization and it is also resistant to

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Reduction

Oxidation

Alkylation

Ozonolysis

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