Question # 1

What is abuckyball

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A carbon molecule

Nickname for Mercedes -Benz's futuristic concept car (CIII)

Plastic explosives nanoparticle (C4)

Concrete nanoparticle with a compressive strength of 20 nanonewtons(C20)

Which type of polymers the Vulcanised rubbers is.

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Linear

Cross jinked

Branch chain

Any one of these

Which of the following statements is not related with principal requisites of water for industrial purposes.

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It should be pure and cool

It should not contain iron

It contains less quantity of line

It must be soft

Separation of isotopes of uranium is carried out by

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CaF2

SF6

HF

All above

Major ingredients of traditional ceramics

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Silica

Clay

Feldspar

All

For a chemical reaction A ___________ produce, the rat of the reaction doubles when the concentration of A is increased by 4 times the order of the reaction is.

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0

1

1/2

4

Which of the following is a component of soap.

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Sodium sulphate

Sodium stearate

Sodium chloride

Sodium bromide

The reduction in ozone layer would lead to

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Temperature chages

Rainfall failure

Increase uv radiation on earth

All above

Who coined the word nanotechnology.

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Eric Drexler

Richard Feynamann

Sumio tijma

Richard smalley

The bond length is measured by

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X-ray diffraction

Neutron diffraction

Microwave spectroscopy

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

When a strong beam of light is passed through a colloidal solution, the light will

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Be reflected

Be scattered

Pass unchanged

Be dispersed

Which of the following are anionic detergents.

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Sodium salts of sulfonated long chain alcohol

Ester of stearic acid and polythlene glycol

Quaternary ammonium salt of amine with acetate ion

Sodium salts of sulfonated long chain hydrocarbons

Cobalt salt imparts which colour to the borax bead

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Blue

Green

Red

Yellow

At higher altitudes, the boiling point of water is lowered because.

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Atmospheric pressure is low

Temperature is low at high altitude

Atmospherics pressure increase

None of the above

Which of the following molecules has the lowest average speed at 273 K.

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CO2

CO

CH4

O2

Which of the following represent the fuming sulphuric acid

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H2S2O4

H2S2O3

H2S2O6

H2S2O7

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

Which one of the following oxides is basic.

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MnO

Mn2O3

MnO2

Mn2O7

The percentage of nitrogen in ammonia is _______________%

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32

82

25

55

AlCl3 fumes in air because of.

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Hydrolysis

Dehydration

Hydration

Oxidation

The Langmuir theory of unimolecular adsorption is generally valid at.

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Low pressures and low temperature

Low pressures and high temperature

High pressures and low temperature

High pressure and high temperature

Which of the following species is not a basic radical.

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Ag+

Cl-

Ba2+

K+

Finely divided iorn combines with CO to give

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Fe(CO)3

Fe2 (CO)9

F33(CO)12

Fe(CO)6

A mixture of weak acid and its salt is.

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Alkaline buffer

Acidic buffer

Neutral buffer

All of above

A closed system is one which can exchange with surrounding.

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Matter but not energy

Energy but not matter

Both matter and energy

Neither matter nor energy

Iodination of benzene takes place in the presence of iodine and

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HNO3

HIO3

HgO

All of these

Who prepared and explained nano tubes for the first time.

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Sumio Tijima

Richard Smaley

Erick Drexler

Richard Feynamann

Ionic bond are also forces called as.

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Polar bond

Electrovalent bond

None polar bond

Both A and B

Arrangement of peptide chains of protein in spec to form helix stucture is referred to as.

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Primary structure

Secondary structure

Tertiary structure

Quaternary structure

Example of intra molecular hydrogen bonding.

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O-nitrophenol

O-hydroxy benzaldehyde

O- hydroxy benzoic acid

All of the above

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