Question # 1

An ideal gas obeying kinetic gas equation can be liquefied if

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Its temperature is more than critical temperature

Its pressure is more than critical pressure

Its pressure is more than critical pressure but temperature is less than critical temperature

It cannot be liquefied at any value of P and T

Which of the following protein has application is food industry

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Globulin

Gelatin

Casein

All

Which thermometer will have its reading 273 degrees greater than that of thermometer C?

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A

B

B has 273 degrees greater than A

C has greater reading than all other thermometers

Which of the following element will have strongest van der Waal force of attraction between its molecules?

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nitrogen

hydrogen

oxygen

chlorine

During the manufacturing process of cement the temperature of the decomposition zone goes up to

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600°C

800°C

1000°C

1200°C

Equal volume of all gases at same temperature and pressure contain number of molecules:

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multiples

equal

different

in fractions

The reason that diamond and graphite have different physical properties is

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density

color

bonding

hardness

Amides are

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Strongly basic

Weakly basic

Acidic

Strongly

At equilibrium rate of evaporation and rate of condensation

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Become very high

Become very low

Become equal

Can never be equal

Which of the following is an example of diffusion?

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Spreading of smell of flowers in garden

Steam condensing on a cold window

Bubbles rising in a beaker of boiling water

All of above

Oxides of sulphur react in atmosphere by various reactions to form:

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sulphates

sulphites

sulphides

sulphate aerosols

Mustard gas is a

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Gas

High boiling speed

High melting liquid

Steam

Enzymes are

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Proteins

Minerals

Oils

Fatty acids

Synthetic rubber is made by polymerization of

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Chloroform

Acetylene

Divinlacetylene

Butene

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Increases

Decreases

Remains same

Cannot be predicted

Four d-orbitals contain four lobes while fifth contains only two lobes the orbital is

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dxy

dxz

dz²

dx²- y²

When phenol is reduced in the presence of Zn dust, we get

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Cyclohexene

Cyclohexane

Benzene

Benzyne

Spraying of DDT produces pollution of

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Air

Air and water

Air and soil

Air, water and soil

Gammexane is

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Chlorobenzene

Benzyl chloride

Brommobenzene

Benzene hexachloride

The nitrogen present in some fertilizers helps plants to:

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Fight against diseases

Produce fat

Undergo photosynthesis

Produce protein

A condensation polymer among the following is

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Dacron

PVC

Polysterene

Teflon

Formalin is an aqueous solution of

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Furfural

Fluorescein

Formaldehyde

Formic acid

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