Question # 1

The azimuth or angular quantum number (i) determines the number of sob shells in a given shall. the allowed values of l for a given value ffor n are.

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1.2.3.......................

1,2,3 ..................(n-1)

0.1.2.3................(n-1)

2,4,6,..............(n-2)

Which of the following process is not related with cannot cycle.

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Iso thermal expansion

Adiabatic expansion

Isothermal compression

Isobaric compression

Which of the following statement is false regarding lyphilic sols.

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The colloidal particles show a linking for the dispersion medium

These are generally easy to prepare

These are more stable than lyophobic sols

The stability of the sols is mainly due to the electrical double layer

Which of the following relation corresponds to Faraday law of electrolysis.

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m = ZI t

E = mc²

E = ho

None of the above

When SI is dipped with As, it becomes

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Superconductor

p-type conductor

N-type conductor

None of these

A theoretical link between quantum mechanics and thermodynamic is.

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Electrochemistry

Kinetic theory of gases

Spectroscopic analysis

Statistical thermodynamics

Which of the following solids is a better conductor of electricity.

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Pore NaCl cyrstal

Diamond

Graphite

Marble pieces

Which of the following is not related to the limitations of Bohr's model.

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It does not applicable to more than one electron system.

It does not explain the extra lines obtained in the H-spectrum

It considers the electron as particle

It considers the electron as a wave.

A closed system is one which can exchange with surrounding.

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Matter but not energy

Energy but not matter

Both matter and energy

Neither matter nor energy

The rotation of plane polarized light when it posses through 1 dm of a solution containing 1 gram of the substance per cm3 of the solution is called.

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Molar rotation

Molar refraction

Specific refraction

Specific rotation

The compound contains two types of X and Y its crystal structure is a cubic lattice with X-atoms at the corners of the unit cells and Y-atom t the body centre, The simplest formulae of this compound is.

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X2Y

XY

XY2

X8Y

Which of the following statement about molecularity is not correct.

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It cannot be fraction

It can be obtained from balanced equation

It may be or may not be equal to the order of the reaction

it can not be more than 3

The law which relates the solubility of a gas to its pressure is called.

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Raoult's law

Nernst law

Ostwald's law

Hennery's law

Which of the following is an acceptable value fo the molecularity.

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0

2

6

3/2

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

The reverse of photo chemical reaction is called.

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Phosphorescence

Chemiluminescence

Fluorescence

Photscnaitization

Which of the following is a buffer solution.

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CH3COOH + NH4OH

CH3 COOH + HCl

CH3COOH + NaOH

CH3COOH + CH3COONa

The number of vibrational degree of freedom for CO2 is

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2

3

4

5

Which of the following will have the largest pH?

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O.1 N HCl

0.1 N CH3COOH

0.1 N NaOH

0.01 N NaOH

Which of the following is not an extensive property.

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Work

Entropy

Free energy

Volume

The entropy of the universe

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Tends towards a maximum

Tend towards a maximum

Tends to be zero

Remains constatn

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