Question # 1

Which is not used of Borax

Choose an answer

Softening of water

As medicine for washing eyes

As flux in metallurgical operations

To make quartz

In which compound, the oxidation state of boron in not +3

Choose an answer

H2BO3

Ca2B2O11

Na2B4O7

Mg3B2

Kaolin is a mineral of

Choose an answer

Carbon

Magnesium

Silicon

Aluminium

Boric acid is used as eye wash due to its

Choose an answer

Weakly acidic property

Antiseptic nature

Antibiotic nature

Weakly basic properties

Which is used in the leather industry

Choose an answer

Borax

Boric acid

Boric oxide

Tetra Boric acid

Lead monoxide is

Choose an answer

Amphoteric

Neutral

Acidid

Basic

Boron usually exist in nature as

Choose an answer

Borides

Oxborates

Free element

It is a artificial element

Boric acid can not be used.

Choose an answer

As antiseptic in medicine

For washing eyes

In soda bottle

For enamels and glazes

The chief of aluminum is

Choose an answer

Na₃AlF₆

Al₂O₃.2H₂O

Al₂O₃

Al₂O₃.H₂O

Which element form an ion with charge +3

Choose an answer

Beryllium

Aluminum

Carbon

Sillicon

Aluminium oxide is

Choose an answer

Acidic oxide

Baric oxide

Amphoteric oxide

None of these

Which substances is called chrome yellow.

Choose an answer

Pb3O4

PbO

2PbCO3.Pb(OH)2

PbCrO4

Third abundant element on earth crust is.

Choose an answer

Boron

Oxygen

Aluminium

Silicon

Aluminum oxide is

Choose an answer

acidic oxide

basic oxide

amphoteric oxide

none of these

Which one of the following elements exhibits s-inert pair effect.

Choose an answer

B

Al

Pb

Sc

Which element forms on ion wiht charge 3+

Choose an answer

Beryllium

Aluminium

Carbon

silicon

Aluminium does not corrode because.

Choose an answer

It is a semi metal

It is a silver shining metal

It does not react with O2

It forms a protective layer of Al2O3

Which one of the followings is not ore of aluminium

Choose an answer

Coruridum

Bauxite

Colemanite

Kaolin

More Classes

Other Links

Chemistry Fsc Part 2 Chapter 3 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