Question # 1

Which of the following has cubic structure.

Choose an answer

Sodium chloride

Potassium Chloride

Diamond

All of above

The rate constant of a reaction has same units as the rate of the reaction The reaction is of.

Choose an answer

Second order

First order

Three order

Zero order

The branch of chemistry which is concerned with the interrelation of electrical and chemical energy is called.

Choose an answer

Reaction dynamics

Electrochemisty

Surface chemistry

Kinetics

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

Choose an answer

^ = ^m/2

^/2 = ^m

^ = ^m

^ = ^m/4

Which of the following is not related to the limitations of Bohr's model.

Choose an answer

It does not applicable to more than one electron system.

It does not explain the extra lines obtained in the H-spectrum

It considers the electron as particle

It considers the electron as a wave.

In C4-axis of rotation, an object in rotated through an angle of.

Choose an answer

120^o

180^o

100 ^o

90^o

According to the Grothus -Draper law

Choose an answer

Only absorbed light is effective in producing photo chemical changes

Only light between certain wavelengths

Light is effective only for photo chemical reactions is solution

The light absorbed in proportional to its intensity

Which of the following statement is not related to the characteristics of gaseous state.

Choose an answer

The inter molecular forces of attraction are not strong in gaseous state

The gases do not have definite shape and volume

The gases are characterized by low density.

The gases have low comprehensibility

Which of the following statements is not true with reference to ionic conductors.

Choose an answer

Ionic conductance is due to movement of the ions

It involves the transfer of matter

It involves oxidation reduction reactions

It decreases with rise in temperature.

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

The depolarizer used in dry cell batteries in.

Choose an answer

NH4Cl

MnO2

KOH

Na2PO4

Which of the following statements is not related with joule Thomson effect.

Choose an answer

Joule Thomson is 0 isenthalpic in nature

H2 and He show heating effect

All gases show change in temperature

The change in temperature depends on initial temperature and nature of the gas.

Joule Thomson coefficient is defined as meo= (op/oT)H

The minimum amount of energy that the reacting molecules must posses at the time of collations in under to produce effective collisions is called.

Choose an answer

Free energy

Threshold energy

Activation energy

External energy

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

Choose an answer

Ionic mobility

Transport number

Limiting ionic conductance

None of these

Which of the following electrolytes will be most effective in the coagulation of arsenic sulphide sol.

Choose an answer

NaNO3

AI PO4

MgSO4

K4[Fe(CN)6]

For each value of l. the number of m velocity are.

Choose an answer

n²

2l

(2l+1)

(n+1)

Which parameter of a chemical reaction will change with the use of a catalyst.

Choose an answer

Delta F, change in free energy

Delta S, change in entropy

Delta E , change in internal energy

K, the rate constant

The velocity possessed by maximum fraction of molecules at a given temperature is called.

Choose an answer

Average velocity

Root mean aquare velocity

Most probable velocity

None of the above

Which is the correct order of wave number of the following redistions.

Choose an answer

X-rays > uv > Infrared > visible> radio waves

X-rays > uv > visible > Infrared > radio waves

X-rays > radio waves > uv > visible > Infrared

X-rays > Infrared > uv> visible > radio waves

An Ideal gas is one which obeys all the gas law at.

Choose an answer

Low pressure

High Pressure

Low and High temperature

All condition of pressure and temperate re

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

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