Question # 1

For the respiration of sea divers mixture is used.

Choose an answer

He & O2

Ar & O2

Ne & O2

Kr & O2

The most abundant metal in earth's crust is.

Choose an answer

Fe

Al

Ti

Ca

Bromine is soluble in

Choose an answer

Alcohol

Water

Chloroform

All above

Principal constituents of noble gases is

Choose an answer

Argon

Neon

Xenon

Helium

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

Choose an answer

+1

+2

+4

+6

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 magnitude of electron affinity depends on.

Choose an answer

Atomic size

Nuclear charge

Electronic configuration

All of the above

The structure of SO2

Choose an answer

Linear

Angular

V-shaped

Planner

Formula of orthophosphoric acid

Choose an answer

H2PO4

H3PO2

H2P2O5

The Lewis formula of SOCl2, the total number of bond pairs and lone pairs of electron around sulphur are.

Choose an answer

2 ,1

2,2

3,1

3,0

Copper is resistant to

Choose an answer

Air

Water

Acid and Alkali

All of the above

Which of the following contains both covalent and ionic bond.

Choose an answer

CCl4

NH4Cl

CaCl2

H2O

Coordination compound show

Choose an answer

Structural isomerism

Stereo isomerism

Both A and B

None of above

In the extraction of iron, the furnace change consists of iron ore, coke and limestone. The function of limestone is to act as.

Choose an answer

An oxidizing agent

A reducing agent

Flux

Slag

According to SHAB, Lewis acid are divided into.

Choose an answer

Two classes

Three classes

Four classes

None of above

At high temperature nitrogen combines with calcium carbide to give

Choose an answer

Calcium cyanide

Calcium cyanamide

Calcium nitride

Calcium cabonate

Titanium dioxide shows the lattice strcuture.

Choose an answer

Flluorite

Rutile

Wurtzite

Zeolite

The major role of Flurospar which is added in small quantities in the electrolytic reduction alumina dissolved in fused cryolite is.

Choose an answer

As a catalyst

To make the fused mixture very conducting

To lower the temperature of the melt

To decreases the rate of oxidation of carbon at the anode

Pick out the incorrect statement.

Choose an answer

Red phosphorus consists of a complied chain structure and black phosphorus has a layer structure.

Nitrogen shows a little tendency for catenation, because N-N a single bond is very strong.

The xamimum number of covalent bonds formed by nitrogen is four, since it has no d-orbitals in its valence shell

The group 15 elements do not form M5+ ions, but +5 oxidatin state is realized only through covalent bonding.

Nitrogen (N2)) is relatively unreactive because.

Choose an answer

Its electronegativity is high

Its dissociation energy is large

Its atomic radius is small

It is the first element of group 15

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