Question # 1

Which of the following salt is not used in salt bridge to minimize liquids junction potential.

Choose an answer

KCl

NH4Cl

KNO3

CaCl2

Which of the following is soluble in water.

Choose an answer

AgF

AgCl

AgBr

Ag I

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 idea of envisioned the construction of nano robots

Choose an answer

Building nano materials atom by atom

Destruction of macromolecules to nano ones

Bothe of the above

None of the above

Which of the following pollutant result from roasting and heating processes.

Choose an answer

Dust

Smoke

Metal fumes

All above

The rays emitted by the cathode in a gas discharge tube under low pressure and high voltage of electricity are called cathode rays. Which of the following properties are not related to cathode rays.

Choose an answer

These travel in a straight lines.

These are deflected by magnetic and electric field.

Minerals Fluoreace with a characteristic color when placed in a beam of cathode rays.

These are dependent of the material used for the electrode.

In statistical mechanics, there exists a function which contains all the information about a macroscopic system. This function is known as.

Choose an answer

Eigen function

Wave function

Partition function

Distribution function

The acetylene molecule contain a

Choose an answer

Single bond

Double bond

Triple bond

Co ordinate bond

In the process of electrosmosis

Choose an answer

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

Which of the following is not an alkali metal

Choose an answer

Rb

Sb

Cs

Fr

The most abundant metal in earth's crust is.

Choose an answer

Fe

Al

Ti

Ca

With which one of the following configurations, the lowest value of first IE is associated.

Choose an answer

Is2, 2s2, 2p6, 3s1

1s2, 2s2, 2p5

1s2, 2s2, 2p6

1s2, 2s2, 2p6, 3s2, 3p2

Hybridization involves.

Choose an answer

Orbitals of same atom with slightly different energies.

Orbitals of different atoms, but with equal energies.

Orbitals of the same atom but with widely different energies.

Orbitals of different atoms with different energies.

BCl3 is a planar molecule because B atom is.

Choose an answer

sp2 hybridized

Sp3 hybridized

sp hybridzed

sp3 d hybridized

The following statements are true except one which one.

Choose an answer

Carburizing does not harden a steel

Flame and induction hardening require the use of hard enable steels.

Quench –hardened steel does not require tempering to present brittleness

None of these

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

Choose an answer

Increase in entropy

Decrease in entropy

Reversible work done by the system

All types of work except the work of expansion

The correct order of thermal stabilities of hydriedes of group 15 is.

Choose an answer

NH3 > PH3 > AsH3 > BiH3> SbH3

NH3 > PH3 >AsH3 > SbH3> BiH3

NH3 < PH3 < SbH3 > AsH3 > BiH3

BiH3 > Sb H3 > AsH3 > PH3 > NH3

Which of the following is atmospheric pollutant.

Choose an answer

CO2

CO

O2

N2

Chief source of water and soil pollution in

Choose an answer

Mining of ores

Thermal power plant

Agro industry

All the above

The units of coefficient of viscosity are.

Choose an answer

kg m-1 n-1

gm -1, s-1

kgm-1, min -1

None of the above

Which of the following disposal method is used for agriculture wastes.

Choose an answer

Dump

Landfill

Incineration

Open burning

All above

The point at which the reaction is observed to be complete is called.

Choose an answer

The equivalence point

The end point

The triplet point

The equilibrium point

The IUPAC name of HOCCH2CH2CH2COOH is

Choose an answer

4- formylbutanoic acid

5- formylpentanoic acid

4- carboxybutanal

5- carboxypentanal

Hydrogen at the moment of its generation is generally called.

Choose an answer

Protium

Nascent hydrogen

Atomic hydorgen

Heavy hydrogen

Pick out the incorrect statement

Choose an answer

The geometry around 'N' atom in trimethylamine is pyramidal

The geometry around N atom in trisilylamine is planar

The nitrogen atim is trimethylamine is sp2 hybridized whilst in trisilylamine it is sp2 hybridized

Trisilylamine has donor properties whilst trimethylamine has no donor properties.

The value of Kw increase with temperature because the ionization of water.

Choose an answer

Positive

Negative

Endothermic

Exothermic

Refining is

Choose an answer

Extracting petroleum gas

Separation of various fraction

Heating of coal

All of above

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 does not belong in the group of herocyclic dyes.

Choose an answer

Acridine

Cyanine

Methylene blue

Amido black

Which compound among the following does not contain an ionic bond.

Choose an answer

NaOH

HCl

KaS

LiH

Which of the following statements is not true for both B and Al

Choose an answer

They burn in oxygen to give oxides at high temperature

Their halides are Lewis acids

They combine with nitrogen to form nitrides

They react with HCl to form chlroides.

More Classes

Other Links

PPSC Chemistry Full Book 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

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