Question # 1

TLC belongs to which of the following chromatographic techniques.

Choose an answer

Ion exchange

Partities chromatography

Adsorption chromatography

Gel permeation

The total number of bond pairs around sulphur and total number of lone pairs around oxygen atoms in the Lewis structure of sulphate ion are respectively.

Choose an answer

4, 12

8,12

12,4

6 ,12

The reverse of photo chemical reaction is called.

Choose an answer

Phosphorescence

Chemiluminescence

Fluorescence

Photscnaitization

The inert gasses AR, Ka, and Xe form solid compounds with certain organic molecules under pressure..

Choose an answer

Halides

Hydrates

Clathrates

All of above

Which of the following statement in not correct with respect to inductive effect.

Choose an answer

Bond length decrease with increase in inductive effect.

Inductive effect generates polar character in bonds

Variation in strength of aliphatic acids can be explained

It alone cna explain the basically of triphenylamine

What is the ASTM tension testing designation for standard method for steel products.

Choose an answer

A 370

E 345

E8

E 9

Which of the following chloride is soluble in hot water.

Choose an answer

Hg2Cl2

AgCl

PbCl2

All above

When SI is dipped with As, it becomes

Choose an answer

Superconductor

p-type conductor

N-type conductor

None of these

Arrange the following in order of increasing boiling point.

Choose an answer

CH3OH < CH3Cl < RbCl < CH4

CHOH < CH4 < CH3Cl < RbCl

RbCl < CH3Cl < CH3OH < CH4

CH4 < CH3Cl < CH3OH < RbCl

A combination of atomic orbitals produces a large number of closely special energy states brown as.

Choose an answer

Packet of energy

Band of energy

Botha a and b

None of the above

If Principal quantum number n = 4 the quantum number l can have calue.

Choose an answer

1,2,3 and 4

0,1,2 and 3

1,2 and 3 only

None of the abvoe

Steel is an alloy of iron and carbon with limits on the amount of carbon to less than _______ percent.

Choose an answer

2

3

1

4

Which of the following material is a constituent of crop residue.

Choose an answer

Cull

Fruit

vines

Bagasse

All above

Both the elements are typical non metals.

Choose an answer

B & Ai

B & Si

Al & Si

Any of above

The variable valency is generally observed in case of.

Choose an answer

Transition elements

Inert gases

Normal elements

Non- metallic elements

According to the Langumir isotherm , when the pressure of the gas is very large, the adsorption.

Choose an answer

Is directly proportional to pressure

Is inversely proportional to pressure

Is directly proportional to the square of the pressure.

Is independent of pressure

The expected specific waste fo petroleum industry is.

Choose an answer

Asphalt and tars

Paper

Cloth

Fibre

Lother Meyer plotted a graph showing variation of.

Choose an answer

Atomic volume with increase in atomic number

Atomic volume with increase in atomic weight

Atomic redii with increase in atomic weight.

Atomic weight which increase in atomic number

DDT is

Choose an answer

Biodegradable pollutant

Nodegradable contaminant

Air pollutant

An antibiotic

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

Choose an answer

Polarimeter

Viscometer

Refractometer

Stalagnameter

The word 'ceramic' meant for.

Choose an answer

Soft material

Hard material

Burnt material

Dry material

In bi sulphate ion, the formal charge on sulphru atom is.

Choose an answer

+1

+2

+4

+6

Aluminium reacts with boiling water to liberatedi hydrogen gas along with the formation of.

Choose an answer

Aluminium oxide

Aluminium hydroxide

Aluminium suboxide

Aluminium superoxide

Select the correct IUPAC nae for [Co(NH3)6 ]2+

Choose an answer

Hexammoniacobaltate (II) ion

Hexaamminecobaltate (II) ion

Hexammoniacobalt (II) ion

Hexaamminecobalt (II) ion

Which of the following dye is used an antiseptic .

Choose an answer

Methyl orange

Mercurochrome

Alizarin

Bismarck brown

Which of the following statement represent advantages of sanitary Landfill

Choose an answer

Economical method

Low initial investment

Flexible daily capacity

All above

_________ is used as stablizer.

Choose an answer

CaO

SiO2

NaCl

None of these

The most harmful components of incomplete combination are generally groped as particulate polyclic matter organic (PPOM) These materials are derivatives of .

Choose an answer

Benzene

Naphthalene

Benz a pyrene

None of the above

The efficiency of a reversible heat engine depends only on the

Choose an answer

Temperature of the heat sink

Temperature of the heat source

Temperature of the heat source and sink

Pressure of the fluid

The principal ores of copper are

Choose an answer

Copper sulphides

Copper oxides

Both sulphides and oxides

Copper carbonate

Galvanized steel are steel products coated with

Choose an answer

Carbon

Sulphur

Zinc

Iron

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