Question # 1

Which one of the following statements is not true.

Choose an answer

Transition metals form alloys

Transition metals form complexes

Zn, Cd and Hg are transition metals

K2[PtCl6] is a well known compound but corresponding nikel compound is not knonwn

The formula of sulphur sequioxide

Choose an answer

SO4

S2O7

S2O3

SO3

What is the function of Head Box in paper making machine.

Choose an answer

It dry the paper

It reduces thickness of paper

It makes the surface of paper smooth

It discharge the pulp at the screen of fourdrinier table

What refers to the deterioration of material by oscillatory relative motion of small amplitude between two solid surfaces in a corrosive environment?

Choose an answer

Stray current corrosion

Microbiologicla corrosion

Fretting corrosion

None of these

A system which can exchange energy as well as natter with its surrounding is said to be a/an

Choose an answer

Closed system

Inert system

Open system

All of above

In Serpekr's process the ore is treated with which of the following.

Choose an answer

Carbon

Nitrogen gas

Both A and B

None of these

Which of the following is the statement of third law of thermodynamics.

Choose an answer

Entroy of perfectly crystalline substance is zero at T = 0

Entropy of a perfectly crystaline substance is zero at standard state conditions

Entropy and enthalpy of a substance become equal at T = 0

Free energy of a crystalline substance is zero at T = 0

Among the elements of third period, the element with lowest boiling point belongs to group.

Choose an answer

1

14

16

18

Which of the following is not a biodegradable polymer.

Choose an answer

Protein

PVC

Cellulose

Nucleic acid

A colloidal system in which both the dispersion phase and dispersed phase are liquid is.

Choose an answer

Smoke

Emulsion

Whipped cream

Mist

Which of the following pose threat to historical monument Taj.

Choose an answer

Floods in Yamuna river

Temperature mediated spoilage of marble

Air pollutants from Mathura refinery

Weathering of marble

What is defined as an intimate mechanical mixture of two or more phases having a definite composition and a definite temperature of transformation within the solid state.

Choose an answer

None of these

Pearlite

Eutechtoid

Delta solid solution

In each period the element with lest electron affinity belongs to.

Choose an answer

Group 1

Group 14

Group 17

Group 18

Major achievement of CFT is

Choose an answer

Interpreting the color

Adsorption spectra

Both A and B

None of above

Alnico is an alloy containing how many percent nickel.

Choose an answer

10%

14%

18%

22%

Phenol on reaction with ethanoic anhydrides in the presence of sodium ethanoate gives.

Choose an answer

Phenyl benzoate

Ethyl benzoate

Phenyl ethanoate

Phenyl methyl ether

Which of the following gas is not used as carrier gas in GC.

Choose an answer

Argon

Nitrogen

Helium

CO2

Which of the following have +3 oxidation states.

Choose an answer

B & AI

In & TI

B & In

AI & TI

Variable electrovalency is due to the following reasons.

Choose an answer

Unstable configuration of core

Inset electron pair effect

All of above

None of above

Which of the following is not a property of aluminium.

Choose an answer

An efficient electrical conductor

A low density compared to other metals

Is amphoteric

Toxic to humans

Which of the following is not a property of Cr.

Choose an answer

it is brilliant silvery metal

it is malleable

It can take very high polish

Its surface is tarnished easily

In order to understand the nature of H , bond the theory has been suggested.

Choose an answer

Electrostatic approach

Molecular orbital approach

Valance bond approach

All the above approaches

In Dumas method, the volume of the gas collected is equivalent to which of the following gases set free from the compound.

Choose an answer

Ammonia

O2

N2

NO

Which of the following methods is chemical in nature.

Choose an answer

Acid bas titration

Redox titration

Complexometric titration

All above methods

Co ordinate compounds are

Choose an answer

Polar

Non polar

Dem polar

None of above

Used in producing intense light in cinematography

Choose an answer

Xenon

Krypton

Radon

Helium

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

Choose an answer

Benzene

Chloroform

Ether

H2O

Xenon diflouride is obtained by irradiating a mixture of xenon and fluorine with light from a high pressure.

Choose an answer

Mercury arc

Tungeston arc

Xenon arc

None of above

C is -2 butene on reaction with bromino give 2,3 -dibromobutane which is

Choose an answer

Recemic mixture

Meso isomer

Dextoroisomer

Levoisomer

When a strong beam of light is passed through a colloidal solution, the light will

Choose an answer

Be reflected

Be scattered

Pass unchanged

Be dispersed

The process requirieng the absorption of energy of.

Choose an answer

F = F

Cl = Cl

H = H

O = O

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