Question # 1

In which of the following compound valency of carbon in 4 but its oxidation number is zero

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Methane

Carbon dioxide

Carbon monoxide

Formaldeyde

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 phenomenon of x-ray diffraction was studied by

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Huygen

Bragg

Max Planck

None of above

A drop of a liquid acquires spherical shape because of.

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Its viscous nature

Capillary action

The tendency to acquire minimum surface are

Its shape

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 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

At constant temperature , the decrease in Halmholts free energy is equal to.

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Decrease in entropy

Increase in entropy

Reversible work done by the system

All types of work done

The emission of light in a biological reaction is known as

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Fluorescence

Phosphorescence

Bioluminescence

Photolysia

Which of the following statements is not relevant to the Plank's quantum Theory.

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Radiant energy is not absorbed or emitted continuously

Radiant energy is emitted or absorbed in the form of small packets of energy.

The quantum oflight energy is called photon

The energy associated with photon of radiation is directly proportional to the wavelength.

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 device is used to measure the surface tension.

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Polarimeter

Viscometer

Refractometer

Stalagnameter

The designation of an orbital with n =4 and l = 1 in

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4 s

4 p

4 d

4 f

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

Reaction in which molecules absorbing light do not themselves react but induce other moleculaes to react are called.

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Chain reactions

Photosenaitized reactions

Reversible reactions

Free radical reactions

The Schrodinger equation when solved for any system gives.

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The mean force path

The Polarizability

The energy function

The wave function

In terms of number of phases (p) components (C) and degree of freedom (F) the phase rule is expressed as.

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P + C = F + 2

F = P+ C - 2

P + F= C + 2

P - F = C = 2

For one mole a gas, the total kinetic energy is equal to.

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2/3 Rt

3/2 RT

2/3 kT

3/2 kT

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 unit cells has least symmetry.

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Monocline

Cubic

Triclinic

Tetragona

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

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Pore NaCl cyrstal

Diamond

Graphite

Marble pieces

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

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Covalent

Ionic

Metallic

Molecular

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