Question # 1

For a single -component system, the maximum degree of freedom in

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1

2

3

Between 3 and 6

Which type of the solids are generally good conductors of electricty.

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Covalent

Ionic

Metallic

Molecular

Which is the following is not a buffer.

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H2CO3/HCO3

NH4Cl/NH4OH

CH3COOH/CH3COONa

NH3OH/CH3COOH

When a concentrated solute of an electrolyte is diluted.

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Its specific conductance increases

Its equivalent conductance decreases

The specific conductance decreases and equivalent conductance increases

Both specific and equivalent conductance increase

The branch of physics that mathematically describes the wave properties of electron in atomic is called.

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Statistical Mechanics

Quantum Mechanics

Chemical statistics

Thermodynamics

At the some temperature 0.1 M solution of urea is isotonic with.

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0.1 M glucose solution

0.1 M NaCl solution

0.1 M urea solution

0.1 M BaCl2 solution

Colloids can be purified by

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Peptization

Coagulation

The Breeding are method

Dialysis

The angle between corresponding planes forming the external surfaces of the crystal remains constant for a given substances This is known as.

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Steno's law

Henry's law

Bragg law

Pascal law

The rise of a liquid in capillary tube is due to.

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Osmosis

Diffusion

Surface tension

Viscosity

The efficiency of a reversible heat engine depends only on the

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Temperature of the heat sink

Temperature of the heat source

Temperature of the heat source and sink

Pressure of the fluid

Which of the following item is not symmetry element.

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Pllane of symmetry

Inversion centre

Improper rotation

Optical activity

Which parameter of a chemical reaction will change with the use of a catalyst.

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Delta F, change in free energy

Delta S, change in entropy

Delta E , change in internal energy

K, the rate constant

A theoretical link between quantum mechanics and thermodynamic is.

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Electrochemistry

Kinetic theory of gases

Spectroscopic analysis

Statistical thermodynamics

Layer of the C -atom in graphite are hold together by

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Covalent bonds

Free electrons

Ionic bond

Van Dar Waals forces

Which of the following is always true for the adiabatic expansion of gas.

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Temperature rises

Pressure rises

W=0

Q = 0

According to Arrhenius theory an acid is defined as substance which

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Accepts and electron pair

Donatees H+ ion in ammonia

Contains Cl- ions

Furnishes H3O + ion in water

The branch of chemistry which is concerned with the interrelation of electrical and chemical energy is called.

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Reaction dynamics

Electrochemisty

Surface chemistry

Kinetics

Which of the following has the highest lattice energy

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LiCl

NaCl

KCl

CaCl

The device that convert the chemical energy of fuel directly into electrical energy is called.

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Galvanic cell

Electrolytic cell

Fuel cell

Concentration cell

Which of the following molecules have centre of symmetry.

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H2O

HCl

CO2

H2SO4

Which of the following symmetry element leaves the molecule or an object unchanged.

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Proper rotation

Improper rotation

Inversion axis

Identity

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