Question # 1

The intramolecular forces in gases are:

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Weak.

Normal.

Very weak.

Strong.

All of the following are polar amino acids except

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Serine

Glutamate

Arginine

Alanine

Which one among the following is not a natural polymer?

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protein

cellulose

nylon

nucleic acid

The addition of HCI to ethene gives?

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Chloroethane

1,2-dichloroethane

1.1-dichloroethane

2-chloroethane

Equal volumes of ideal gases contain equal number of molecules at:

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Same temperature

Same pressure

Same environmental conditions

Both (A) and (B)

In nucleophilie substitution bimolecular reaction the order of reaction with respect to substrate

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2 order

3 order

1st order

Zero order

To distinguish aldehyde from ketone which solution is used

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Alkaline solution

Fehling's solution

A solution containing K2Cr2O7

A solution containing acid only

Industrial materials and thermal power stations are coated by

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PVC

Polyester

Epoxy resin

PVA

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

Photo chemical smog contains _________ as main reactants:

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nitrons oxide and unburnt hydrocarbons

niliric oxide and unburnt hydrocarbons

NO and burnt hydrocarbons

N₂O and burnt hydrocarbons

Which is a good nucleophile as well as a good leaving group?

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F-

Cl-

Br-

I-

The amount of energy required to remove an electron from an atom of an element in the gaseous state is called

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Electron affinity

Electronegatively

Ionization energy

None of these

During electrolysis of KNO₃, H₂is evolved

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Anode

Cathode

Both a and b

None

Which is not nitrogeneous fertilizers?

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(NH₄)₂HPO₄

NH₄NO₃

Urea

Calcium phosphate

Which one of the following is used as antifreeze in the radiator

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Methanol

Ethanol

Ethylene glycol

Glycerin

The degree of polarity of molecule is known as its

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Dipole moment

Moment arm

Bond energy

Ionic character

The pressure of vapours when sent to the ionization chamber in mass spectrometer is

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10^-5to 10^-6torr

10^-6to 10^-7torr

10^-7to 10^-8torr

10^-3to 10^-4torr

The colour of the transition metal compounds is due to

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p-d transition

d-d transition

s-p transition

None of these

Depletion of ozone is more during the month:

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Jan - March

April - Ju8n

July - Aug

Sept - Nov

The relative lowering of vapour pressure is equal to the mole fraction of the solute is statement of

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Rault law

Henry law

Dalton law

Grahms law

The spectrum of He is expected to be similar to that of

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H

Na

He⁺

Li⁺

In the ground state, an element has 13 electrons in its M shell. The element is

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Copper

Chromium

Nickel

Iron

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