Question # 1

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

Helium is used in weather balloons and airships instead of H2 becuse it is.

Choose an answer

Lighter than hydrogen

Incombustible

More abundant than hydrogen

Radiactive

Ca H2 on reaction with water liberates

Choose an answer

H2

O2

Botha of these

None of these

Which of the following elements with excess oxygen to form proxides.

Choose an answer

Ca

Mg

Li

Ba

The most stable oxidation state shown by lead is.

Choose an answer

+2 , +4

+2 only

+3 , +4

+4 only

To increase the life of filament and to low the heat conductivity a mixture in filled in electric bulb.

Choose an answer

Ar & N2

Ar & Kr

Kr & N2

Xe & N2

An element having low IE and low EA is likely to belong to.

Choose an answer

Group IA

Group IB

Group VII A

Group VIII

Which of the following iso -electronic ion would require least energy for the removal of electron.

Choose an answer

Ca2+

Cl-

Ar-

K+

In urea the amount of nitrogen is

Choose an answer

82.0%

46.0%

33.0%

21.0%

Aluminium halides is.

Choose an answer

White crystalline solid

Hygroscopic

Sublimes at 180^oC

All above

Major achievement of CFT is

Choose an answer

Interpreting the color

Adsorption spectra

Both A and B

None of above

iodine is used as

Choose an answer

Tincture of iodine

Iodex and antiseptic

Treatment of goiter

All above

The movement of an electric charge produce a magnetic field is known from the

Choose an answer

Elementary Physics

Elementary Chemistry

Both A and B

None of above

Metallic bond is treated essentially as in character

Choose an answer

Ionic

Covalent

Polar

Non polar

Stainless steel consists of which elements.

Choose an answer

Fe only

Cr only

Fe and Ni

Fe ,Ni and Cr

Anhydrous AlCl3 cannot be obtained by heating hydrated AlOI3 ,6h2o Because.

Choose an answer

It decomposes completely to give Al2O3

It does not lose water completely

It undergoes hydrolysis to give Al(OH)3

AlCl3 .6H2O is very stable.

BCl3 is a planar molecule because B atom is.

Choose an answer

sp2 hybridized

Sp3 hybridized

sp hybridzed

sp3 d hybridized

Which of the following is not true of ozone.

Choose an answer

It is a strong electilizing agent

It attacks organic compounds containing carbon carbon double bond

Its molecular is linear and has two different O-O bond lengths

It is more powerful oxidising agent at molecular oxygen

Diamond and carbon are the _________ forms of carbon

Choose an answer

Isotropic

amorphous

Allotropic

Isomeric

Sodium silicate is used

Choose an answer

In the paint industry

For fixing labels to glass

In a soap industry

All above

Example of intra molecular hydrogen bonding.

Choose an answer

O-nitrophenol

O-hydroxy benzaldehyde

O- hydroxy benzoic acid

All of the above

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