Question # 1

The rusting of iron is catalysed by which of the following.

Choose an answer

Fe

O2

Zn

H+

Metallic magnesium is obtained by

Choose an answer

Reduction of MgO with Coke

Electrolysis of an aqueous solution of MgCl2

Electrolysis of molten MgCl2

Displacement of magnesium by iron form MgCl2 solution.

Red colour of glass of due to the presence of

Choose an answer

Cu2O

CoO

MnO2

CdS

Which of the following is not a property of Ni.

Choose an answer

it is a soft silvery white metal

It is malleable and ductile

It is highly magnetic

It has high electrical and thermal conductivities

Which halide of cesium will be highly ionic in nature.

Choose an answer

K+

Ag+

Rb+

Ca+

The bond order gives the following valuable information.

Choose an answer

Stability of the molecules of ions

Bond dissociation energy and bond length

Magnetic properties

All of the above

Al Cl3 is used in

Choose an answer

Manufacturing of petrol

In borax bead test

Prezervation of food

All above

Which of the following ions does not have the electronic configuration same as that of neon.

Choose an answer

F-

O2-

Na+

Ca2+

An sp3 hybrid orbital contains

Choose an answer

1/4 a character

1/2 a character

2/3 a character

3/4 a character

The alkali metal that react with nitrogen directly to form nitrides.

Choose an answer

Na

K

Rb

Li

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

At high temperature nitrogen combines with calcium carbide to give

Choose an answer

Calcium cyanide

Calcium cyanamide

Calcium nitride

Calcium cabonate

Which one of the following has the highest boiling point.

Choose an answer

H2O

H2S

H2Se

H2Te

H2SO4 is manufactured by

Choose an answer

The lead chamber process

The contact process

Both A and B

The Ostwald's process

Group VII A of periodic table consist of elements.

Choose an answer

4

5

6

7

Helium oxygen mixture is used by deep sea divers in preference to nitrogen oxygen mixture, because.

Choose an answer

Helium is much less soluble in blood than nitrogen

Nitrogen is much less soluble in blood than helium

Due to high pressure deep under the sea, nitrogen and oxygen react to give poisonous nitric oxide.

Nitrogen is highly soluble in wateer

Explosive trioxide XeO3 is produced when

Choose an answer

XeOF4 reacts with water

XeOF4 reacts with silica

XeF4 reacts with water

Any of above statements

Among sodium phosphate, sodium sulphate and sodium chloride the solubility in water increases as.

Choose an answer

Chloride > Phosphate > Sulphate

Sulphate > Pohosphate> Chloride

Chloride > Sulphate > Phosphate

Phosphate > Chloride > Sulphate

In the Lewis structure of H2SO4 molecule the total number of unshared electrons in valence shell of various atoms is.

Choose an answer

8

16

12

20

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

Among the solvents given below, with dielectric constant (E) given in parentheses which has highest solubility of KCI?

Choose an answer

Benzene (E=O)

Carbon disulphide (E = O)

Methanol (E =32)

Acetone (E = 2)

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