Question # 1

Stablization of particles and their reactivity is affected by.

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Surface properties

Bulk properties

Regardless to the surface properties

No of particles

a-pinene hydrochloride on warming rearrangements to form bornyl chloride

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Pinacol pinacolone

hofmann

Wagner Meerwein

Wolf

Which of the following metal ion cannot be catimated by gravimetric analysis.

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K+

Ca²⁺

Al3+

Zn2+

Which of the following radical is not a member of III group

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Al³⁺

Fe²⁺

Ca²⁺

Fe³⁺

1-Butyne on oxymereuration -demercuration would give.

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Butanone

Butanal

Propanol and methanol

Propanoic acid and formic acid

Which of the following statements are correct for Linear polymers.

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Linear polymers may be condensation as well as addition polymers

Structure is well packed in nature

Linear polymers have higher density higher melting point and higher tensile strength

All are correct

Lead pencil contain

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Lead

Lead sulphide

a mixture of lead and silica

graphite

Gravimetric method is based on which of the following property.

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Volume of a liquid

Volume of gas

Mass of substance

Viscosity

Which of the following radical is a member of VI group.

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Mg²⁺

Na+

K+

NH₄⁺

All above

Nitric acid is used in the manufacturing of.

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Dyes

Drugs

Artificial silk

All above

Which of the microscope techniques is similar to the Atomic Force Microscopy (AFM)

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Scanning Electron Microscopy

Scanning Tunneling Microscopy

Transmission Electron Microscopy

None of the above

SAN is a polymer of

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Styrene

Acrylonitrile

Both A and B

Vinyl chloride

The study of coiled long peptide chains of protein to give a 3 dimensional structure is the study of.

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Primary structure

Secondary structure.

Tertiary structure

Quaternary structure.

The conductance of 1 cm3 of an electrolytes solution is called its.

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Specific resistance

Specific conductance

Molar conductance

Equivalent conductance

Lactic acid is a molecule which shows

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Epimersim

Tautomerism

Opical isomerism

Metamerism

Which among the following is secondary pollutant.

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CO

CO2

PAN

Aerosol

Carbon and Hydrogen are estimated by

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Liebig's method

Kjeldhal's method

Carries method

None of the above

Sodium metal cannot be stored under

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Hexane

Benzene

Kerosene

Ethanol

Aluminothermy used for on the spot welding of large iron structures is based upon the fact that.

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As compared to iron, aluminium has greatest affinity for oxygen.

As compared to aluminium, iron has greater affinity for oxygen

Reaction between aluminim and oxygen endothermic

Reaction between iron and oxygen is endothermic

The colour imparted by lithium to the flame is.

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Golden yellow

Grasay green

Violet

Red

Organic farming is the technique of raising crops through uses of.

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Manures

Biofertilizers

Resistant varieties

All of these

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

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Fluidity

Viscosity

Surface tension

Turbidity

Coulometry is based on the measurement of

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Electrical current

Electrical potential

Electrical conductance

Dielectric constant

What is the following is incorrect.

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Water is more polar than H2S

H2O2 is a planar molecule

Heavy water is produced by the exhauative electrolysis of water made acidic

H2O2 act both as oxidising as well as reducing agent in acidic medium

in monel metal copper is alloyed wiht which metal.

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Fe

Mn

Ni

All

Which of the following statement about molecularity is not correct.

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It cannot be fraction

It can be obtained from balanced equation

It may be or may not be equal to the order of the reaction

it can not be more than 3

Which of the following species have undistributed octahedral structure.

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SF6

PF6

Si F₆^2-

XeF6

The branch of chemistry dealing with the study of reactions in the Uv visible region of the spectrum in known as.

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Kinetics

Photo chemistry

Surface chemistry

Catalysis

The product obtained on heating n-heptane with Cr2O3 ____Al2O3 at 600 ^oC is.

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Cycloheptane

Methyl cyclohexane

Benzene

Teluene

The expected specific waste of food industry is.

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Meats

Nuts

Fats or Oils

All above

Potassium reacts with excess of oxygen to form

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K2O

K2O2

KO2

K2O3

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