Question # 1

What is component of environment?

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Atmosphere

Hydrosphere

Lithosphere

All of these

The non polar gases of low polarizability have a very:

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Low critical temperature

Stable critical temperature

High critical temperature

In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this

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Cobalt

Nickel

Arsenic

Sulphur

In big/metropolitan cities, atmosphere is mostly polluted due to

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Radioactive fall out

Household waste

Pesticide residue

Automobile exhausts

Choose the gas law which gives relationship between volume and pressure:

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Bolye,s law

Graham,s law

Dalton,s law

Charles,s law

Which of the following amino acid is named due to its taste

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Alanine

Lysine

Valine

Glycine

Keratomalacia is caused due to the d3eficiency of vitamin:

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A

B

K

D

Which type of motion is exhibited by gases?

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Vibrational

Transitional

Rotational

All of them

The crystal of diamond is

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ionic

molecular

covalent

metallic

Tertiary structure of proteins involves EXCEPT

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Domains

Globular

Fibrous

Beta sheets

A pressure of 1Nm^-2 is equal to:

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one bar

one pascal

stalagmometer

one aomosphere

An alkynes having Carbon count of 20 is

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gas

liquid

Solid

None

Coordination number of Pt in [PtCl (NO²) (NH³)⁴]^2-

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2^-

4

1

6

Hypo is used in photography for

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Developing picture

Picture printed

The colour of picture

The fixation of picture

Alcohols of low molecular weight are

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Soluble in water

Soluble in water on heating

Insoluble in water

Insoluble in all solvents

The number of moles of NH₄CI dissolved in 500 cm³of its 15%, W/N solution is

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1 mole

1.4 mole

2.0 mole

2.4 mole

The molecule of ethane possess which hybrization

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sp³

sp²

sp

sp²d

Which can be used for dehydration of alcohol

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P₄O₁₀

H₂SO₄

H₃PO₄

All of them

The most distinctive character among the elements is their division into

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Metals and non-metals

Solids, liquids and gases

Atoms and molecules

Active and inactive elements

Coal contains sulphur in it :

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1 - 3%

1 - 6%

1 - 9 %

1 - 12%

The alkynides are used for the ----------- of alkynes

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Pxperation

Purification

Seperation

All of above

Alcohol can be denaturated by adding:

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Acetone

Methanol

Pyridine

All

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