Question # 1

Which of the following type of lattice has maximum numb of atoms per unit cell.

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Simple cubic

Body centred cubic

Face centred cubic

All of them

Which of the following is a natural polymer

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Nylon

Leucite

Cellulose

Polystyrene

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

The number of moles of solute dissolved in 1000 gram of the solvent is called

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Formality

Molality

Molarity

Mole fraction

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

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0

2

6

3/2

The efficiency of a reversible heat engine depends only on the

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Temperature of the heat sink

Temperature of the heat source

Temperature of the heat source and sink

Pressure of the fluid

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

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

The principal quantum number determines the overall size of the orbital and energy of the electron when it is associated with the orbital.It may have the values.

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n = 1,3,5.........infinity

n= 2,4,6................infinity

n = 1,2,3,4..............infinity

None of the abvoe

The vapour pressure of a liquid

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Always increase's with temperature

Always decreases with temperature

Is independent of temperature

Increase up to the boiling point

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.

Which of the following solution would have the largest depression in freezing point.

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1% glucose

1 % KCl

1 % AlCl3

1 % BaCl2

At constant temperature and pressure, the decrease in Gibbs free energy (F) in equal to

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Increase in entropy

Decrease in entropy

Reversible work done by the system

All types of work except the work of expansion

Which of the following unit cells has least symmetry.

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Monocline

Cubic

Triclinic

Tetragona

A compound with an congruent melting point decomposes on heating into.

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A liquid of the same composition as the solid

A new solid phase and a solution with a compositional from that of the solid phase

A new solid phase and a solution with the same composition as that of the solid phase

A solution of fixed composition

Among the unit cells given below, which has the highest symmetry

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Monoclinic

Cubic

Hexagonal

Orthorhombic

Branch of chemistry that deals with the basic principles governing energy changes during various processes is called.

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Wave mechanics

Chemical kinetics

Chemical thermodynamics

Electro chemistry

The equivalent conductance (^) and molar conductance ( ^ m ) of BaSO4 are related as.

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^ = ^m/2

^/2 = ^m

^ = ^m

^ = ^m/4

Solution with components which obeys Raoult's over the entire composition range are said to be.

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Real solution

Regular solutions

Dilute solutions

Ideal Solution

Which of the following system has low as well as upper consolute temperature.

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Nicotine - water

Aniline -water

Triethlylamine -water

Phenol -water

The mole of photon is known as

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Quantum

Eienstein

Energy Packet

None of the above

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