Question # 1

Graham s law refers to

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Boiling point of gases

Gas compression problems

Gaseous diffusion

Volume changes of gases due to change in temperature

Which of the following polymer has application in paper industry

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Starch

Glycogen

Protein

All

Why a C - Cl bond breaks by uv light

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Cl is most electronegative

Cl is volatile

C - Cl bond energy is smaller than that of C - H bond energy

Uv light provides energy which is sufficient to break C - Cl bond and not C - H bond

The rate of diffusion of a gas is:

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Inversely proportional to its density.

Inversely proportional to square root of its molecules mass.

Directly proportional to molecular mass.

Directly proportional to its density.

Neutralization of acid-base is

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Spontaneous

Exothermic

Non spontaneous

Both "a" and "c

Identify the linear polymer out of following

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Amylose

Amylopectin

Starch

Glycogen

A reaction A- B is independent of concentration of reactant A. The order of reaction will be

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First order

Second order

Third order

Zero order

Ozone is produced in regions:

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tropical

Polor

antaric

equator

Which of the following is a base according to lowery Bronsted concept?

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I-1

HCl

H3O+

NH4+1

Atmosphere consists of gasses:

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N₂

O₂

Ar

All

Which process of ester will yield carboxylic acid?

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Hydration

Hydrolysis

Oxidation

Reduction

Which is the chain isomer of n-pentane

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Isopentane

Neopentene

N-pentene

Isopentene

Isotopes differ in the

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Number of neutrons

Number of protons

Number of electrons

Number of atoms

RNA is a polymer of nucleotide which consist of three components. Which one is not the component in the nucleotide of an RNA

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D-Ribose

Wracil base

Prosphate group

Thyamine base

Which of the following does not exhibit the periodicity in properties of the elements?

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Ionisation energy

N/P ratio

Electronegativity

Atomic radius

Organic acid without a carboxylic acid group is

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Ascorbic acid

Vinegar

Oxalic acid

Picric acid

The nature of positive rays depend on:

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Nature of discharge tube.

Nature of resident gas.

Nature of electrode.

All of above.

When alkyl halides are heated with aqueous solution of ammonia at about 100°C, amines are formed. This reaction is known as

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Williamsons synthesis

GHoffmans reaction

Wurtz reaction

Clemensen reaction

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Le-chatlier's principle

Only adding catalyst

Decreasing pressure

Decreasing temperature

Ethyl chloride on treatment with aqueous alkali gives

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Ethane

Ethene

Ethanal

Ethanol

Atoms can be evident by use of electron microscope, field ionization microscope and:

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x-rays

Video camera

Telescope

Compound microscope

Acetylene is used in the manufacture of

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Rubber

Plastic

Ethyle alcohol

All of these

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