Question # 1

In sodium chloride type lattice, the ratio of coordination number of cation to anion is.

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6:6

7:7

4:8

4:4

In a standard Weaton cell the cathode is

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Cadmium amalgam

Mercury

Platinum

Carbon

A pH of a neutral solution at 100 ^oC when Kw = 1.0 x 10^-12

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0

7

6

7

A molecule returns from the excited singlet state to the ground singled state with emission of light , This process is known as.

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Fluorescene

Scattering

Phosphorescence

Chemiluminescence

The vibration degrees of freedom for a linear and non liner poly atomic molecule of seven atoms each an respectively

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30 and 29

30 and 32

28 and 29

None of above

The statement that heat cannot flow spontaneously from a colder to a hotter body is the result of.

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The first law of thermodynamics

The second law of thermodynamics

The third law of thermodynamics

Henry's law

Which of the following equations is the most general equation of state.

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Vander Waal's equation

Dielectric equation

Clasuaiua equation

Kamberling Onnes equation

The gases H2, N2, O2 and NH3 . H2 =2 , N2 = 28, O2 = 32 and NH3 =17 will effuse in the order.

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H2> N2> O2 > NH3

NH3 >O2 > N2 > H2

H2 > N2 > NH3 > O2

H2 >NH3 > N2 > O2

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 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

In a one -component system the maximum number of phase that can consist in equilibrium is.

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1

2

3

4

Which of the following sets of quantum number is possible.

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n = 4, l = 3, m = -3 ,s = 0

n = 4, l = 0, m = 0, s =+1/2

n = 4, l = 4, m = -4, s = -1/2

None of these

The co ordination number of atoms in a hexagonal closed packed structure is

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2

6

12

4

The particle motion in solids is

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Only vibratory

Only translator

Vibratory and rotatory

Only translatory

The emission of light in a biological reaction in known as.

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Fluorencence

Phosphoreacence

Biolumineacence

Phtolysis

Which of the following can act both as a Bronsted acid and a Bronsted base.

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Na2CO3

OH-

HCO3-

NH3

A half cell reaction is one that

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Occurs at one electrode

Goes only half way to completion

Involves a half mole of the concentration of the solution

Always oxidizes

Which of the following regions of the spectrum would be used to determine the structure of the crystalline solids.

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Microwave

X-rays

Visible

Infrared

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

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Covalent

Ionic

Metallic

Molecular

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 statements is not correct with respect to second law of thermodynamics.

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It helps in know the position of chemical equilibrium

It helps to know the position of chemical equilibrium

It determines the conversion of heat into work

It is based on Nerst heat theorem

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