Question # 1

A system is said to be in the colloidal state if the particle size of the dispersed phase ranges from

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_o

I to 10 A

10 to 10000 A

10 to 100 A

1000 to 10000 A

Which of the following statement is not related to MOT

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Atomic orbitals lose their identities

MOTgives as idea of denationalization

MOT uses all the orbitals and elections

It treated bond as purely covalent

Which of the flowing operator combination would yield eight value equation

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d/x (sin x)

d/dx (cos x)

d /dx (sin 4x)

d /dx (cos 4x)

d/dx (e^x)

Which of the following methods gives the number average molecular weight of a polymer.

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Light scattering method

Osmotic method

Sedimentation equilibrium method

Viscosity method

The isotonic nucleotide X and Y have mass numbers 35 and 37 respectively if the atomic number of X is 17 the atomic number of Y will be.

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15

17

19

18

Which of the following solution has pH= 11?

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1 X 10^-11 m NaOH

1 x 10^-11 m HCl

1 x 10^-3 M NaOH

1 X 10 ³ M NaOH

How much amount of NaOH is required to prepare 100 mL of 1 N solution.

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80 g

4 g

40 g

zero

The expression of specific conductance is given by

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Ls= I/R , l/A

Ls = L I/A

Ls = I/L , A/l

LS = r l/A

All cycle engines working reversibly between same temperature of source and sink have the same efficiency This is the statement for the.

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Carnot cycle

Carnot theorem

Narnst theorem

Second law of thermodynamics

The atomic orbitals are progressively filled in order of increasing energy. This statement is called as

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Hund's rule

Aufbau's rule

(n+1) rule

Planck's rule

The rate constant of a reaction has same units as the rate of the reaction The reaction is of.

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Second order

First order

Three order

Zero order

Regarding the internal energy of the molecules, which one of the following statements in not correct.

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It is the sum of vibration rotational and electronic energy

It is a path function

It is a state function

It is an exact differential

An equilibrium the free energy change delta F for a reaction is.

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Maximum

Minimum

Zero

Negative

The enrichment of chemical substance at the surface of a solid is called

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Adsorption

Absorption

Sorption

Isotherm

The degree of dissociation of weak acid increases with.

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Decreasing pressure

Increasing pressure

Increasing concentration

Decreasing concentration

Which of the following is not an intensive property.

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Melting point

Refractive index

Entropy

Density

The units of coefficient of viscosity are.

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kg m-1 n-1

gm -1, s-1

kgm-1, min -1

None of the above

The depolarizer used in dry cell batteries in.

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NH4Cl

MnO2

KOH

Na2PO4

Which of the following statement is incorrect about rock salt type

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It has for arrangement of Na+

Na+ and Cl- ions have coordination number of 6:6

A unit cell of NaCl metals have rock salt type structure.

None of them

Which of the following phenomena is not explained by the classical mechanics.

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Black body radiation

Photoelectric effect

Atomic and molecular spectra

Heat capacities of solids

All of the above

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