Question # 1

According to the Debye-Huckel theory of strong electrolytes, and ion moving in an atmosphere of oppositely charged ions experience a drag This effect is known as

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Aaymmetric effect

Electrophoretic effect

Inter ionic effect

Concentration effect

A silver iodide and was prepared by mixing KI and AgNO2 solution with the AgNO2 in slight excess. Which of the following descriptions is correct regarding is not particles.

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Negatively charged because of the excess of NO-3 ions

Positively charged because of the excess of Ag+ ions in the AgI lattice

Negatively charged because I ions are adsorbed from the KI solution

Neutral

The intensity of magnetization produced per unit strength of the applied magnetic field is called magnetic susceptibility., which of the following statements is not related with this phenomenon.

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Confirmation of structure of given compound

Complex storeochemistry

Diamagnetic nature of molecules

Paramagnetic nature of molecules.

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 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

The number of vibrational degree of freedom for CO2 is

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2

3

4

5

Which of the following property of liquids concern with the interval resistance to its flow.

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Refractive inded

Viscosity

Optical activity

Dipole moment

The maximum number of electrons in first energy levels are.

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1

2

8

10

Which of the following statement is correct.

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The wavelength of phosphorescence is less than the wavelength absorbed

Teh transition from T₁ to S₀ without the emission of light is called phosphorescence

The combination CO2 and water in plants, in the presence of chlorophyll, is an example of bioluminescence.

Population inversion is a necessary condition for laser action

The flow of solvent into a solution when two are separated by a semi -permeable membrane is called.

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Mixing

Effusion

Diffusion

Osmosis

When some quantity of electricity is passed though two electrolytic cells. The ratio of the mass of the products obtained at the cathode is the same as the ratio of their

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Densities

Atomic masses

Equivalent masses

Atomic numbers

Which of the following has hexagonal structure.

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Sodium chloride

Potassium choride

Diamond

Graphite

The number of formula weight of the solute dissolved per dm3 of the solution is called.

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Mole fraction

Normality

Formality

Molaiity

Which is the correct configuration of Fe3+ (Z= 26)?

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[Ar] 4s² , 3d⁶

[Ar] 4s² , 4d⁵

[Ar] 3d⁵

None of these

The freezing point of a solvent

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Will increase on adding a solute

Will decrease on adding a solute

Will note change on adding solute

None of the above

Which is the following is not a buffer.

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H2CO3/HCO3

NH4Cl/NH4OH

CH3COOH/CH3COONa

NH3OH/CH3COOH

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

The rate at which a substance reacts depends on its.

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Molecular mass

Active mass

Equivalent mass

Molar mass

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)

The Langmuir theory of unimolecular adsorption is generally valid at.

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Low pressures and low temperature

Low pressures and high temperature

High pressures and low temperature

High pressure and high temperature

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

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