Question # 1

Finely divided iron combines with CO to give.

Choose an answer

Fe(CO)5

Fe2(CO)9

Fe(CO)12

Fe(CO)6

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

Choose an answer

Fe

H+

O2

Zn

When steam is passed over red bot coke The product formed is

Choose an answer

Hydrogen and carbon dioxide

Mixture of hydrogen and carbon monoxide

Mixture of hydrogen and oxygen

Heavy hydrogen

The green colour of glass is due to the presence of.

Choose an answer

Chromium (III)

Cobalt (II)

Mn (IV)

Iron(III)

The electronic configuration of chromium is 4s1, 3d5, The elements tungsten (W) belongs to the same group and has atomic number 74.The configuration of its valence shell is.

Choose an answer

5s1, 4d5

6s1, 5d5

6s1, 5d6

6s1, 5d4

VBT does not edplain

Choose an answer

Absorption spectra

Color of transition metal ion

Heat of formation

All above

In the electrolysis of alumina, cryolite is added to.

Choose an answer

Lower the melting point of alumina

Increase the electric la conductivity

Minize anodize affect

Remove impurites from alumina

Which of the following is a false statement.

Choose an answer

Halogens are strong oxidizing agent

Halogens show only (-I) Oxidation state

Hf molecules from intermolecular H-Bonds

Fluorine is highly reactive

The bromine produced on commercial scale may contain impurities of.

Choose an answer

Water

Chloride

iodine

All above

Which of the following method is used for the coventrating of ores.

Choose an answer

Gravity separation

Magnetic concentration

Fourth floatation

Electrostatic concentration

All

Electronegativity is given by

Choose an answer

Average of first and second ionization energies.

Average of first and second electron affinites

Average of ionization energy and electron affinity

None of the above

The variable valency is generally observed in case of.

Choose an answer

Transition elements

Inert gases

Normal elements

Non- metallic elements

Molecule of oxygen is

Choose an answer

Diamagnetic

Paramagnetic

Both A and B

None of above

A type of a chemical bond which is formed by the mutual sharing of electrons between combining atoms of the same or different elements is called.

Choose an answer

Ionic bond

Covalent bond

Co ordinate Covalent bond

Metallic bond

Pick out the incorrect statement for transition metals.

Choose an answer

Cu+ is not a transition metal ion

Transition metals do not exhibit variable oxidation states

Transition metal ions are coloured

Transition metals and majority of their compounds are paramagnetic

When metal orbital are rotated in octahedral field the following representation obtained.

Choose an answer

t2 g + lg

a1 g

t 1 u

All above

A stable molecule is a group of atoms held together by

Choose an answer

Chemical forces

Physical forces

Valence force

None of above

The formula of Tetraboric acid is.

Choose an answer

H2BO3

HBO2

H2B4O7

H6B4O9

Law of octaves was proposed by

Choose an answer

Lother meyer

D.I.Mendeleev

J.A.R. Newlands

J.W. Dobereiner

The geometry of Xe F2 is

Choose an answer

Triangular planar

Square planar

Linear

Trigonal bipyramidal

Which of the following metals form volatile carboyl with CO below 80^oC

Choose an answer

Cu

Fe

CO

Ni

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