Question # 1

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

In t-butyl alcohol, the tertiary carbon is bonded

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Three hydrogen atoms

Two hydrogen atoms

One hydrogen atom

No hydrogen atom

Cholesterol is a

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Glyceride

Wax

Steroid

Fat

What is the function of Head box in paper making machine.

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It reduces the thickness of paper

It dry the paper

It discharge teh pulp at the screen of fourdrinier table

Web structure is consolidated

Which gas is evolved when CO2 is passed through KO2.

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O2

CO

O3

None of these

The aromatic ring of Benzene can be hydrogenated in the presenc eof.

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Pt

Rh

Sunlight

O3

Which one of the followings is woody raw material used for making pulp and paper

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Eucalyptus

Wheat straw

Bagasse

Cotton linter

Which noble gas is used in radiotherapy

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Neon

Argon

Krypta

Radon

Which one of the following macromolecules contains carbon, hydrogen, nitrogen and oxygen in it.

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Nylon-6,6

Terylene

Starch

Bakelite

Which one of the following compounds is most abundant is nature.

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glucose

Starch

Cellulose

Fructose

To product aldehyde group against alkaline oxidizing agent.

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It is reduced in the presence of catalyst

An acetal is formed

It is oxidized

It is treated with aqueous NaBH4

Which three elements are needed for the healthy growth of plants.

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N,S,P

N, Ca, P

N,P,K

N,K,C

Which hydroxide decomposes on heating.

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LiOH

NaOH

KOH

CaOH

The yellowish colour in photochemical smog is due to the presence of.

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NO

NO2

SO2

CO2

Which one of the following is secondary pollutant of atmosphere.

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CO

NO2

SO2

H2SO4

Boric acid can not be used.

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As antiseptic in medicine

For washing eyes

In soda bottle

For enamels and glazes

Ionic Hydrides react with water to form

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Proton

Hydride ions

Hydroxide ions

Hydronium ions

Which one of the following set of raw material is most suitable for manufacture of urea.

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CH4, N2 and CO2

H2, N2 and CO

H2,CO2 and H2O

H2O, N2 and H2

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