Question # 1

Which of the following properties are not related to an atom.

Choose an answer

An atom consists of two basic parts , a nucleus and one or more electons.

The nucleus is the central core of an atom

An electron is a heavy and negatively charged particle.

The nucleus itself consiste of two particles.

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

Choose an answer

Mole fraction

Normality

Formality

Molaiity

Which of the following expression is correct.

Choose an answer

C = n/RT

C = RT/n

RT = Cn

Cn = 1/RT

A molecule returns from the excited singlet state to the ground singled state with emission of light , This process is known as.

Choose an answer

Fluorescene

Scattering

Phosphorescence

Chemiluminescence

Which of the following device is used to measure the surface tension.

Choose an answer

Polarimeter

Viscometer

Refractometer

Stalagnameter

The number of degrees of freedom and number of components for a system of containing undissolved salt , in equilibrium with water vapor are.

Choose an answer

2,2

3 , 2

1 , 1

1 , 2

Which of the following expressions represent the equivalent conductance.

Choose an answer

A = l s x 1000/V

A = Ls x 1000/C

A = Ls l/A

A = Ls/V

The expression of specific conductance is given by

Choose an answer

Ls= I/R , l/A

Ls = L I/A

Ls = I/L , A/l

LS = r l/A

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 mole of photon is known as

Choose an answer

Quantum

Eienstein

Energy Packet

None of the above

The vibration degrees of freedom for a linear and non liner poly atomic molecule of seven atoms each an respectively

Choose an answer

30 and 29

30 and 32

28 and 29

None of above

The pink colour of phenolphthalen in in basic medium is due to the

Choose an answer

Cationic form

Anionic form

Natural form

OH- ions of the base

Which of the following reactions have small enthalpy change.

Choose an answer

NaOH with HCl

NaOH with CH3 COOH

HCl with NH4 OH

None of these

Which of the following statement is correct.

Choose an answer

The wavelength of phosphorescence is less than the wavelength absorbed

Teh transition from T₁ to S₀ without the emission of light is called phosphorescence

The combination CO2 and water in plants, in the presence of chlorophyll, is an example of bioluminescence.

Population inversion is a necessary condition for laser action

Sea water is converted into fresh water bases upon the phenomenon of.

Choose an answer

Plasmolysis

Sedimentation

Diffusion

Osmosis

Reverse osmosis

During reaction of copper with aqueous solution of silver nitrate

Choose an answer

Silver atoms are reduced

Cu2+ ions are reduced

Silver ions are reduced

No³ ions are reduced

The increasing order of energies of various sub shells is

Choose an answer

1s < 2s<3s<2p<3p<4s<3d

1s <2s<2p<3s<3p<4s<3d

1s>2s>2p>3s>3p>4s>3d

1s>2s>2p>3p>3d>4s

The change in the concentration of the reactant of product per units time is called.

Choose an answer

Order of the reaction

Melecularity of the reaction

Rate of reaction

None of the above

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

Choose an answer

Wave mechanics

Chemical kinetics

Chemical thermodynamics

Electro chemistry

For an elementary reaction

2A + B ------------------- C + D

The molecularity of the reaction is.

Choose an answer

1

2+

3

4

The atomic orbitals are progressively filled in order of increasing energy. This statement is called as

Choose an answer

Hund's rule

Aufbau's rule

(n+1) rule

Planck's rule

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