Question # 1

Which of the following carbonates decomposes at the highest temperature.

Choose an answer

Mg CO3

CaCO3

Sr CO3

Ba CO3

The three isotopes of hydrogen differ from one another in

Choose an answer

Atomic number

Number of protons

Nuclear charge

Nuclear mass

The acetylene molecule contain a

Choose an answer

Single bond

Double bond

Triple bond

Co ordinate bond

The wire of flash bulb is made up of.

Choose an answer

Cu

Ag

Mg

Ba

Example of inter molecular H-bonding is

Choose an answer

NH3 and H2O

HF

CH3COOH

All of abvoe

The element Uuu has atomic numebr

Choose an answer

102

111

101

110

In which pair of species, the Lewis formulae contain same number of ion pairs and bond pairs but they are not isoelectronic.

Choose an answer

O2, N2

SO2, O3

PCl3 , BF3

SOCl2, COCl3

Variable oxidation states is shown by

Choose an answer

Normal eleemnts

Metallic elements

Non metallic elements

Transition elements

Pick out the incorrect statement regarding ozone.

Choose an answer

O3 is an unstbale dark blue diamagnetic gas

The central oxygen in O3 is sp3 hybridized

It cause the tailing of mercury

It does not react with KOH

The element having electronic configuration 1s2, 2s2, 3s2, 3p3 is.

Choose an answer

Trivalent only

Tetravalent only

Trivalent and pentavalent

Pentavalent only

A chemical reaction resulting in a change in the electric charge on the reacting particles may be called as.

Choose an answer

Add ion reaction

Redox reaction

Elimination reaction

Chain reaction

Which of the following generally increases on going from top to bottom in a group.

Choose an answer

Metallic charcter

Electronegativity

Oxidising behaviour

Raducing behaviour

With which one of the following configurations, the lowest value of first IE is associated.

Choose an answer

Is2, 2s2, 2p6, 3s1

1s2, 2s2, 2p5

1s2, 2s2, 2p6

1s2, 2s2, 2p6, 3s2, 3p2

Iron which contains up to 1% carbon is called.

Choose an answer

Steel

Cast iron

Wrought iron

Pig iron

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

Which of the following molecule does not contain the covalent bond between similar atoms.

Choose an answer

N2H4

F2O2

H2F2

H2O2

Most electronegative element is.

Choose an answer

C

Si

Pb

Sn

Which of the following is the strongest oxidant.

Choose an answer

F2

Cl2

br2

I2

Lithum silicide reacts with concentrated hydrochlric acid to give lithium chlride along with.

Choose an answer

H2 and SI

Si H 4 gas

Disilane gas

Si3H8

Group IV A consist of elements

Choose an answer

3

4

5

6

Aluminium hydroxide is.

Choose an answer

An acid

An amphoteric hydroxide

A base

An explosive hydroexide

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