Question # 1

The oxidation Number of I in HIO4 is.

Choose an answer

+6

+ 7

+ 3

+ 14

The number of mole of the solute dissolved per dm3 of the solution is called.

Choose an answer

Molality

Formality

Normality

Molarity

A 2M solution of H2SO4 would have how many moles of H+ ion in one liter

Choose an answer

1.0

2.0

4.0

5.0

In quantum theory, which of the following tells us that the prediction of quantum mechanics must pass smoothly into those of classical mechanics as we progress in a continuous way from microsopic to macroecopic.

Choose an answer

Uncertainty principle

Correspondence principle

Probability distribution

Aufbau principle

Equivalent conductance is expressed in the units.

Choose an answer

S cm-1 eq -1

S cm eq-1

S cm2 eq-1

S cm2 eq

Which of the following reactions does not take place with light radiation.

Choose an answer

Oxidation

Reduction

Polymerization

Double displacement

Which of the following is not a colligative property.

Choose an answer

Elevation of B.P.

Depresaion in F.P

Viscosity

Osmotic pressure

The number of coordinates required to specify the position of all the atoms in a molecule is called number of degree of freedom. The vibration degrees of freedom of a linear molecule containing N atoms are

Choose an answer

2N-5

2N -6

3N -5

N-6

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

Choose an answer

H2> N2> O2 > NH3

NH3 >O2 > N2 > H2

H2 > N2 > NH3 > O2

H2 >NH3 > N2 > O2

The half life period of any first order reaction.

Choose an answer

Is half the specific rate constant

Is independent of the initial concentration

Is always the same whatever the reaction

Is directly proportional to the initial concentration of the reactant

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

Choose an answer

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

The photoelectric effect is the ejection pf electrons from the surface of metal when light falls on it. Which of the following statements is not correct about the phenomenon.

Choose an answer

The kinetic energy of photo electron depends upon the frequency of the incident radiation

Electrons are ejected only when the frequency of light exceeds a certain threshold value

The higher the energy of the photon greater the kinetic energy of the ejected electron.

The threshold frequency of all the metals is same.

All naturally occurring processes spontaneously in a direction leads to.

Choose an answer

Decrease of entropy

Increase of entropy

Decrease in free energy

Increase in free energy

Which of the following liquids has lowest vapour pressure at 25 ^oC

Choose an answer

Benzene

Chloroform

Ether

H2O

Which of the following statement is not related with high quantum yield reasons.

Choose an answer

Formation of reactive intermediates which may act as catalyst

The active molecules may collide with other molecules and activates these molecules.

The reaction may be exothermic and heat evolve may activate other molecule

The primary photo chemical process may be reversed

Which of the following sets of quantum number is possible.

Choose an answer

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

For a given mass of a gas, if pressure in reduced to half and temperature in doubled, then volume.

Choose an answer

2V²

4V

8 V

V²

The maximum number of electron is an atom with l = 2 and n = 3 is

Choose an answer

2

6

10

12

Which of the following statement is not correct regarding galvanic cells.

Choose an answer

Oxidation occurs at the anode

Ions carry current inside the cell

Electrons flow around the external circuit. form cathode to anode

When the e.m.f. of the cell is positive cell reactionis spontaneous

The SI unit of pressure is Pascal it is define da sa force per unit are of 1N/m2 one atmosphere of pressure is equal to.

Choose an answer

760 mm of Hg

1 bar

101 k Pa

760 torr

All are correct

Which of the following statements is not correct.

Choose an answer

The conductance of one cm3 of a material is called specific conductance

Specific conductance increase while equivalent conductance decreases on progressive dilution

The limiting equivalent conductance of weak electrolytes cannot be determined by extrapolation of the plot of A against concentration

The conductivity of metals is due to the movement of elctrons.

More Classes

Other Links

PPSC Chemistry Part I Physical Chemistry Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer