Question # 1

For dilute solutions colligative properties depend on.

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The number of the particles of the solute and nature of solvent.

The number of the solute particles and on their nature

The number of the solute particles and nature of solute and solvent

The number of the solute particles and irrespective of the nature of the solute and solvent.

The fraction of the total current carried to an ion is called itss.

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Ionic mobility

Transport number

Limiting ionic conductance

None of these

The volume of given mass of gas at constant pressure is directly proportional to the absolute temperature.This is a statement of.

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Charles's law

Boyle's law

Avogadro's law

Dalton's law

Which of the following statement is not related to collision theory.

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Molecules must collide with each other to do a chemical reaction

Molecules must posses a minimum amount of energy

Molecules must have proper orientation

Collision theory is applicable to liquid only.

In the process of electrosmosis

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Colloidial particles move towards the electrodes

Both colloidal particles and dis persons medium move

Only dispersion medium moves to carry the current

Positively charged colloidal particles move, but negatively charged particles remain stationary

The branch of chemistry dealing with the study of reactions in the Uv visible region of the spectrum in known as.

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Kinetics

Photo chemistry

Surface chemistry

Catalysis

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

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Covalent

Ionic

Metallic

Molecular

The kinetics of the decomposition of ammonia on the tungsten surface follows

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Zero order

First order

Second order

Third order

Which of the following is not a true characteristics of a catalytic reaction.

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The amount and chemical composition of the catalyst remains unchanged after the reaction

The catalyst does not intiate a chemical reaction

The reaction in which product also act as catalysis are called autocratically reactions.

The catalyst shifts the equilibrium position of a reaction in a favorable direction

Which of the following reactions have small enthalpy change.

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NaOH with HCl

NaOH with CH3 COOH

HCl with NH4 OH

None of these

During the titration of weak acid against NaOH the conductance of the solution after the neutralization point.

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Is constant

Decreases

Varies irregularly

Increase

The rate constant of a reaction depends on

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Concentration of reactants

Concentration of products

Temperature

Time

The second order rate constant can have units.

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dm-6 mol 2 s-1

dm3 mol s-1

dm³ mol^-1 s^-1

dm6 mol-1 s-1

In proper rotation (Cn) an object is rotated through an angle of.

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a/n radians

2n/n radians

3n/n radians

4n/n radians

A unit cell having dimension , a = b c, alpha, beta, gama = 90^o is known as.

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Cubic

Hexagonal

Orthorhombic

None of them

The particle motion in solids is

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Only vibratory

Only translator

Vibratory and rotatory

Only translatory

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

Isotopes are atoms whom nuclei have the same atomic number but different mass numbers. A specific isotope has an atomic number of 18 and a mass number of 35. How many electrons are there in the neutral atom.

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17

18

34

35

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 normality of 2.3 M H2SO4 solution is.

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0.46 N

0.23 N

2.3 N

4.6 N

Which of the following sets of quantum number is possible for an electron in a 4f orbital.

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n = 4,l = 3, m = 4, s = +1/2

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

n = 4, l = 3, m = +1, s = -1/2

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

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