Question # 1

In the fourth flotation process for the purification of ores, the ore particles floats because.

Choose an answer

They are light

Their surface is not easily wetted by water

They bear electrostatic charge

They are insoluble

Which librates H2 with NaOH

Choose an answer

B

AI

Zn

All

Bond angle is minimum in

Choose an answer

H2O

CO2

NH3

CH4

Al Cl3 is used in

Choose an answer

Manufacturing of petrol

In borax bead test

Prezervation of food

All above

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

Stainless steel consists of which elements.

Choose an answer

Fe only

Cr only

Fe and Ni

Fe ,Ni and Cr

The correct order of ionization energies of alkali metals is.

Choose an answer

Li > Na > K > Rb

Na > K > Rb > Li

Rb > K > Na > Li

Rb > K > Li > Na

Which of the following reactions is employed to produce ozone in the laboratory.

Choose an answer

Exposure of air to UV light

Reaction of F2 with H2O at low temperature

Reaction SO2 with H2O2

Passage of silent electric discharge through oxygen

Which trihalide is not hydrolysed by water

Choose an answer

NF3

NCl3

PCl3

AsCl3

Which of the following ions does not have the electronic configuration same as that of neon.

Choose an answer

F-

O2-

Na+

Ca2+

Which of the following statement is incorrect.

Choose an answer

An alloy is a mixture of two or more metals

An alloy is a mixture of two or more metal and non metal elements that have metallic properties

An alloy has a fixed composition

An amalgam is an alloy containing Hg

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

Choose an answer

2,1

2 ,2

3 ,1

3 ,0

According to Fajns rules, which one of following results in increased ionic nature of the covalent bond.

Choose an answer

Larger cation and smaller charges on anion

Larger cation and larger charge on anion

Smaller cation and smaller charge on anion

Smaller cation and larger charge on anion

Urea is fertilizer

Choose an answer

Nitrogen fertilizer

Potash fertilizer

Phosphorous fertilizer

Complete fertilizer

Which of the following elements has the highest value of second ionization energy.

Choose an answer

Lithum

Beryllium

Boron

Magnesium

iodine is used as

Choose an answer

Tincture of iodine

Iodex and antiseptic

Treatment of goiter

All above

Iron which contains up to 1% carbon is called.

Choose an answer

Steel

Cast iron

Wrought iron

Pig iron

Which of the following is not known.

Choose an answer

KrF6

XeF6

XeO3

KrF2

Zero group of the periodic table consists of.

Choose an answer

Four elements

Five elements

Six elements

Eight elements

Arrhenius concept explained

Choose an answer

Constant heat of neutralization

Quantitative determination of acid base strength

Catalytic property of acid

All above

Aluminum occurs in nature as.

Choose an answer

Native

Combined form

Both native and combined

Free

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