Question # 1

Which of the following statement is not related to BVT

Choose an answer

individual orbitals lose their indention

VBT uses the concept of resonance

VBT does not explain the paramanhetic nature of molecule

it uses only valence electron

The property measured in TGA is

Choose an answer

Change in weight

Rate of change in weight

Heat envolved and absorbed

Change of temperature.

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

Aviation Fuel contains.

Choose an answer

Light Naphtha

Medium Naphtha

Kerosene

Diesel

Which librates H2 with NaOH

Choose an answer

B

AI

Zn

All

Finely divided iron combines with CO to give.

Choose an answer

Fe(CO)5

Fe2(CO)9

Fe(CO)12

Fe(CO)6

Brass is an alloy of

Choose an answer

Copper and tin

Copper and zinc

Aluminium and nickel

Leed and tin

Which of the following process is involved in the purification of crude metals.

Choose an answer

Liquation process

Oxidation process

Distillation process

Electro refining

Iron which contains up to 1% carbon is called.

Choose an answer

Steel

Cast iron

Wrought iron

Pig iron

The size of nanoparticles is between __________ nm

Choose an answer

100 to 1000

1 to 100

0.1 to 10

0.01 to 1

One ppm solution of NaOH Contain 1000 mg of the solute per how much of the volume of the solution.

Choose an answer

1000 mL

100 mL

10 mL

1 mL

Which of the following is not alloy of aluminium.

Choose an answer

Aluminium bronze

Magnalum

Duralumin

Stellite

Iodine is a grey black solid and its vapours are in color

Choose an answer

Grey

Black

Yellow

Violet

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

Choose an answer

Mole fraction

Normality

Formality

Molaiity

In B2H6 molecule

Choose an answer

There exists a direct B-B a -bond

All the atoms are in one plane

All the B-H bonds are normal covalent bonds

There exist two bonds between the boron atoms.

The reason why phenylamine is a much weaker base tahn ammonia when each is in aqueous solution to that.

Choose an answer

Teh ion pair of electron on two nitrogen atom of phenylamine is delocalised over the benzene ring.

The phenylamine molecule is too large to capture hydrogen ion easily

Phenylamine is much less soluble is water than is ammonia

The benzene ring has a tendency to increase the acidity of its substituents.

According to Fajns rules, which one of following results in increased ionic nature of the covalent bond.

Choose an answer

Larger cation and smaller charges on anion

Larger cation and larger charge on anion

Smaller cation and smaller charge on anion

Smaller cation and larger charge on anion

LPG is use this

Choose an answer

Vehicles

Aviation Fuel

Home

All above

Which of the following dyes belongs to the group of acridine dyes.

Choose an answer

Acriflavin

Alizarin

Indigotin

Cyanine

Which of the following reactions is employed to produce ozone in the laboratory.

Choose an answer

Exposure of air to UV light

Reaction of F2 with H2O at low temperature

Reaction SO2 with H2O2

Passage of silent electric discharge through oxygen

SO3 exists in form

Choose an answer

a -so3

b-SO3

gama SO3

All above

According to CFT the metal ligand bond is considered to be ionic to presentage.

Choose an answer

100%

90%

50%

70%

What element is the most abundant by mass in the Earth's crust.

Choose an answer

Fe

H

O

K

The equilibrium constant value for a chemical reaction is 5 x 10²⁰which of the following statement is true with respect to this value.

Choose an answer

Reaction will be reversible

Reaction will proceed in backward direction

Reaction is at equilibrium

Reaction will proceed in the forward direction

Which of the following relation corresponds to Faraday law of electrolysis.

Choose an answer

m = ZI t

E = mc²

E = ho

None of the above

Which of the following is not an alkali metal.

Choose an answer

Potassium

Francium

Sodium

Strontium

Suppose the activatin energy of a certain reaction is 250 kj/mol, If the rate constant at T1 =300 K is k1 and the rate constant at T2= 320 K is ks, then the reaction is ______ times faster at 320 K than at 300 K

Choose an answer

3 x 10^-29

0.067

525

15.0

Which of the following statements is worng.

Choose an answer

Covalent compounds are generally soluble is polar solvents

Covalent compounds have low melting and boiling point.

Ionic solids do not conduct electricity is solid state

Ionic compounds conduct electricity in the fused state.

Elements of group 14

Choose an answer

Exhibit oxidation state of -4

Exhibit oxidation state of +4

From M3+ and M4+ ions

Form M4- and M4+ iona

The vapours attacks the eyes and mucous membrane of nose and throat

Choose an answer

F

Cl

I

Br

Beillstein test is used for.

Choose an answer

Cl

N2

CO2

Na

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