Question # 1

Al2Cl6 is an example of

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Ionic bond

Covalent bond

Co ordinate bond

Metallic bond

The internal resistance to flow possessed by a liquid is called its.

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Fluidity

Viscosity

Surface tension

Turbidity

What is called black gold.

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Petroleum

Coal

Coal tar

Natural gas

Which of the following represent the fuming sulphuric acid

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H2S2O4

H2S2O3

H2S2O6

H2S2O7

What element constitutes the major component of most bronzes.

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Tin

Zinc

Carbon

Aluminum

Oxalic acid when heated withe conc. H2SO4 it gives out.

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H2O and CO2

CO and CO2

CO2 and H2S

Oxalic sulphate

Which of the following configuration of an ionic species represents psedue noble gas configuration.

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ns2 np6

ns2 np6 nd 10

ns2 np3

ns2

Which of the following statement is not related to applications and limitations of first law of thermodynamics.

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This law explains why chemical reactions proceed to completion

It is silent about the source of heat

It is silent about the direction of heat

It does not tell us about the reversible process.

Stable metal ions strictures are.

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Noble gas structure

Is electron group structure

Transition metal in structure

All of the above

Chemical compounds which are added to reduce to reactivity of glass are called.

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Formers

Modifiers

Stabilizers

None of these

Regarding the internal energy of the molecules, which one of the following statements in not correct.

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It is the sum of vibration rotational and electronic energy

It is a path function

It is a state function

It is an exact differential

Aluminum occurs in nature as.

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Native

Combined form

Both native and combined

Free

When two atoms of hydrogen combine to form a molecule of hydrogen gas the energy of the molecule.

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higher than that of the separate atoms

Equal to that of the separate atoms

Lower than that of the separate atoms

Sometimes lower and sometime higher.

Which of the following is component of the ecosystem.

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Inorganic substances

ORGANIC Substances

Animal and plants only

All above

Zeigler Natta catalyst is.

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Pt/PtO

TiCl4/Al(C2H5)3

Pt/Rh

Pt

Which of the following compounds combines with hemoglobin.

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CO2

CO

NO

N2

Sugar and common salt in a mixture can be separated through then process of.

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Sublimation

Distillation

Ion exchange

Crystallization from solution in ethanol

Which of the following elements has the highest third ionization energy.

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Sodium

Magnesium

Aluminum

Silicon

[Ti(OH2)6]3+ gives colour

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Green

Red

Purple

Blue

Catenation is a process of.

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Formaton of cations

Deposition of cations

Formation of long chain of identical atoms

Formation of covalent bond

The kinetics of the decomposition of ammonia on the tungsten surface follows

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Zero order

First order

Second order

Third order

The branch of chemistry which deals with the rate of reaction as well as mechanism is known as

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Wave mechanism

Classical thermodynamcis

Chemical kinetics

Phtochemistry

Which of the following is not true for metalloids.

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They are borderline elements

They usually act as electron during with non metals.

B, Si, and Ge

They are all solids at room temperature.

Which one of the following oxides is basic.

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MnO

Mn2O3

MnO2

Mn2O7

Monomer of neoprene rubber to

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1-chloro 1,3- butadiene

2- chlro, 1,3-butadiene

2-Bromo -1,3- butadiene

2-Methyl 1,3-butadiene

SO3 exists in form

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a -so3

b-SO3

gama SO3

All above

Which is incorrect statement for Xe F2.

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It has linear structure.

It is hydrolyzed rapidly in aqueous solution of a base

It oxidizes Cl and I to Cl2 and I 2 respectively

It cannot act as F donor

Which of the following is diamagnetic

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O2

O2+

O2-

O2 ^2-

According to Usanovich concept a base is defined as any species.

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Capable of giving up anions

Combining with cations

Neutralizing an acid to give a salt

All of above

Which one of the following statements is not true.

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Transition metals form alloys

Transition metals form complexes

Zn, Cd and Hg are transition metals

K2[PtCl6] is a well known compound but corresponding nikel compound is not knonwn

Group IV A consist of elements.

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3

4

5

6

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