Question # 1

What term is used to denote a family of thermosetting polymers that are reaction products of alcohols and acids.

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Alkaline

Alkydes

Alcocide

Ketones

High density polyethylene has which type of structure.

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Linear

Branch chain

Cross linked

Any one of these

A terpenoid which as an alcoholic group in the molecule is

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Citral

Camphor

Menthol

Carvone

Which one of following is non polar

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CH2Cl2

CCl4

CHCl3

CH3Cl

The first ionization energy of Mg is lower than

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Na

Ca

Al

Be

The process of identifying the component present in a sample is called.

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Quantitative analysis

Qualitative analysis

Volumetric analysis

Gravimetric analysis

Which of the following is not a characteristic of covalent compound.

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They have low melting and boiling points.

They ionize on dissolution in polar solvents

Their molecules have definite geometry

They are generally insoluble in water

The photoelectric effect is the ejection pf electrons from the surface of metal when light falls on it. Which of the following statements is not correct about the phenomenon.

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The kinetic energy of photo electron depends upon the frequency of the incident radiation

Electrons are ejected only when the frequency of light exceeds a certain threshold value

The higher the energy of the photon greater the kinetic energy of the ejected electron.

The threshold frequency of all the metals is same.

Which of the following does not belong in the group of herocyclic dyes.

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Acridine

Cyanine

Methylene blue

Amido black

Which halide of cesium will be highly ionic in nature.

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K+

Ag+

Rb+

Ca+

Which of the following is an example of molecular solids.

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MgO

ZnO

Ice

Graphite

Which isotope of hydrogen is radioactive in nature.

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Protium and deuterium

Tritium only

Tritium and deuterium

Only deuterium

The strongest acid is.

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HNO2

HNO3

H2N2O2

HNOS

A colloidal system in which a liquid is dispersed in a solid is called a/an

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Emulsion

Sol

Gel

Precipitate

The chief ore of aluminium is.

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Cryolite

Bauxite

Kaolin

Carnalite

Which of the following is not a characteristics of solids.

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Definite shape

Definite mass

Definite volume

Fluidity

What is the ratio of stress to strain in a material loaded within its elastic ranger.

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Poisson’s ratio

Refractive index

Modulus of elasticity

None of above

Which of the following is not an ore of Cr.

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Chrome iron

Nicollite

Crocisite

Chrome ochre

What field of study encompasses procurement and production of metals.

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Metallurgy

Geology

Material science

Metalgraphy

The unit of sound pressure level is

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Pascal

Decibel

Newton

Ampere

The alkaline hydrolysis of fat is know as

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Condensation

Esterification

Saponification

Emulsification

in monel metal copper is alloyed wiht which metal.

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Fe

Mn

Ni

All

Fluorine is.

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Powerful oxidizing agent

Most reactive element

Used as refrigerants

All of above

Relative order of acidity of oxy acid

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HCIO > HCIO2 > HCIO3 > HCIO4

HCIO4 > HCIO3 >HCIO2 > HCIO

HCIO3 > HCIO2 > HCIO > HCIO4

HCIO2 > HCIO4 > HCIO3 > HCIO

Casionic polymerization is initiated by

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BF3

NaNH2

Bul

Both b and c

Which of the following sets of quantum number is possible for an electron in a 4f orbital.

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n = 4,l = 3, m = 4, s = +1/2

n = 4, l= 4, m = +4 , s = +1/2

n = 4, l = 3, m = +1, s = -1/2

n = 4, l = 4, m = +1 , s = -1/2

Each fat or oil in made up of

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A distinctive mixture of several different triglycorides

A distinctive mixture of several aldehydes

Mixture of above both

None of above

Which of the following material is a constituent of crop residue.

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Cull

Fruit

vines

Bagasse

All above

Ammonia is utilized for

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Manufacture of urea

Oxidation to nitric acid

Manufacture of ammonium sulphate

All above

Which of the following statements is not relevant to the Plank's quantum Theory.

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Radiant energy is not absorbed or emitted continuously

Radiant energy is emitted or absorbed in the form of small packets of energy.

The quantum oflight energy is called photon

The energy associated with photon of radiation is directly proportional to the wavelength.

What is the ASTM tension testing designation for standard method for steel products.

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A 370

E 345

E8

E 9

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