Question # 1

Copper is mainly extracted from witch of the following ore

Choose an answer

Sulphide ores

Carbonate ores

Oxides ores

Non sulphide ores

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

Metal crystallize is system having co ordination number

Choose an answer

8

12

14

any one of above

The ion that is isoelectornic with CO is

Choose an answer

CN-

O2+

CO2-

N2+

Of the following an amphoteric hydroxide is.

Choose an answer

Ca(OH)2

NaOH

Be (OH)2

Li OH

Boron and aluminum halides are electron deficient compounds in this respect. they act as.

Choose an answer

Lewis acid

Lewis base

Oxidizing agent

Reducing agent

Which of the following pairs shows diagonal relationship

Choose an answer

Li and Mg

Na and K

Zn and Cd

Li and BE

Which of the following species has highest bond energy.

Choose an answer

H2

T2

D

Cl

A covalent bond which is formed between two atoms by the overlap of atomic orbitals along their axis is called.

Choose an answer

Pi bond

Sigma bond

Polar bond

Non polar bond

The maximum covalence of an element equal to.

Choose an answer

The number of unpaired d electrons

The number of paired p electrons

The number of unpaired a and P electors

The actual number of a and P electrons in the outermost shell

On hybridization of one s and one p orbitals we get.

Choose an answer

Two mutualy perpendicular orbitals

Two orbitals at 180^o

Four orbitals directed tetrahedrally

Three orbitals in a plane

The correct order of second ionization potential of carbon nitrogen, oxygen and fluorine is.

Choose an answer

C > N > O > F

O > F > N > C

O > N > F > C

F > O > N > C

Carbides because of their hardness are

Choose an answer

Ionic carbides

Interstitial carbides

covalent carbides

Any of above

Xe reacts directly with

Choose an answer

O2

Cl2

F2

Br2

Which of the following compounds has highest boiling point.

Choose an answer

HI

HF

HBr

HCl

Bromine is soluble in

Choose an answer

Alcohol

Water

Chloroform

All above

Which of the following is not correct.

Choose an answer

Rusting of iron can be stopped by increasing the concentration of CO2 in water

Rusting of iron is electrochemical in nature.

Rusting of iron takes place in moist air

Rusting of iron produces hydrated iron (III) oxide

Alumina is not used as

Choose an answer

Refractory material

A medium in chromatography

An abrasive

A White pigment

Which of the following process is used for the conversion of matte is to nickel.

Choose an answer

Orford process

Mond's process

Electrolytio process

All

The variable valency is generally observed in case of.

Choose an answer

Transition elements

Inert gases

Normal elements

Non- metallic elements

Which one of the following sets of elements has the strongest tendency to form negative ions in gaseous state.

Choose an answer

NA, Mg, Al

Ca, V, Cr

N , O, F

Ga, ln, tI

More Classes

Other Links

PPSC Chemistry Part III Inorganic 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