Question # 1

Which of the following is the weakest base.

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KOH

NaOH

LiOH

RbOH

In the Mendeleev's periodic table elements are arranged in the increasing order of their .

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Numbers of neutrone.

Atomic number

Atomic mass

Atomic volume

Gases and dust particles are removed from H2SO4 by

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Tydal effect

Drying tower

Absorption tower

Contact converter

Which of the following metals is the most abundant in the earth's crust.

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Mg

Ca

K

Na

Which of the following compounds liberates CO2 on heating.

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Li2CO3

Na2CO3

K2CO3

All liberate CO2 on heating.

[Ti(OH2)6]3+ gives colour

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Green

Red

Purple

Blue

In 1952 who popularized the use of CFT for inorganic chemist

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Bethe

Orge

Van Vleck

Werner

The gases that are responsible for green house effect are.

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CO2 & CH4

CFC

N2O

All above

Which of the following process is used for the conversion of matte is to nickel.

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Orford process

Mond's process

Electrolytio process

All

Which one of the following oxides is basic.

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MnO

Mn2O3

MnO2

Mn2O7

The important condition for the formation of chemical bond is that.

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Their electron clouds should not diffuse

Both atoms should have high electron affinites.

Both atoms should have same electronegativities

The process should be accompanied by the lowering in potential energy.

Which of the following would decompose at lowest temperature.

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MgCO3

SrCO3

BaCO3

CaCO3

The 'shape' of molecule ." Xe F6 is.

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Pentagonal bipyramidal

Regular octahedral

Distorted octahedral

Square planar

The formula of Bauxite is.

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Al2O3

Al2 O3. 2H2O

AL2O3, H2O

Na3AIF6

The electronic configuration of sodium (Z=11)

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1s2, 2s2, 2p4

1s2, 2s2, 2p6, 3s2 , 2p5

1s2, 2s2, 2p6, 3s1

1s2, 2s2, 2p6, 3s2

Nitric acid is used in the manufacturing of.

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Dyes

Drugs

Artificial silk

All above

Which of the following has the maximum ionic character.

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HF

HCl

HI

HBr

The maximum absorption in [Ti(OH)2)6 3+ take place at wavelength of.

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6000 A^o

10000 A^o

4000 A^o

5000 A^o

The law of triads is applicable to

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Lithium, beryllium, boron

Fluorine, chlorine, bromine

Chlorine, bromine, iodine

Sodium, potassium, Rubidium

Which of the following are neutral ligands.

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NH3

H2O

CO & NO

All of above

Which of the following alloys contains Cu and Zn

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Bronze

Brass

Gun metal

Type metal

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