Question # 1

Correct relationship b/w Kc and Kp can be written as

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Kp=, Kc(R)∆n

Kc=Kp (RT)∆n

Kp.= Kc.(RT)∆n

Kp=Kc (R/N)∆n

A temperature at which two cyrstalline forms of a substances coexist in equilibrium is called

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standard temperature

critical temperature

transition temperature

absolute temperature

Exhaust fumes of cars contain which poisonous gas

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CH₄

C₂H₆

CO

All of these

At compromise distance the forces dominating between atoms are

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repulsive forces

attractive forces

Dipole induced dipole force

H-bonding

Which of the following liquid has high vapour pressure?

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H₂O

ether

CH₃OH

C₂H₅OH

The main pollutant of leather tanneries in the waste water is due to:

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Lead

Copper

Chromium (VI)

Chromium (III)

Consider gas is measure in bars then the units of rate of reaction is

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Mole dm-3 sec

Bars sec

Mole dm-3 sec-1

Bars sec-1

The buffering property of proteins is due to the presence of

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Acidic and basic group

Hydrogen bonds

Indole group

Hyrophobic

The word polymer is derived from words poly mean many and mer means unit.

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Latin

Greek

English

French

Chemicals used to kill herbs are:

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Herbicides

Insecticides

Pesticides

Fungicides

The attractive forces which are created due to repulsion of electronic cloud of the molecules are

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dipole-dipole forces

ion dipole forces

instantaneous dipole-induced dipole forces

dipole-induced dipole forces

A phtotographic plate is coated with an emulsion of silver nitrate and

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AgCI

AgI

AgBr

NaNO₃

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

When acetic acid and ethanol react together an ester is formed which is called

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Ethyl ester

Ethanoic acid

Ethyl acetate

Dilatometer method is useful for the reaction that involve :

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Small volume changes in solutions

Change in infractive indices

Where reactants absorb U.V, visible or infrared radiation

Which one of the following enzymes brings about the hydrolysis of fats

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Urease

Maltase

Zymase

Lypase

One of the followings is not type of polymer

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Homopolymer

Copolymer

Heteropolymer

Terpolymer

Na₂O is

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Acidic

Basic

Neutral

Amphoteric

The electrolysis of CuSO₄aqueous solution using copper as cathode as well an anode the substance which deposits at cathode is

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H₂SO₄

Oxygen

Copper

Hydrogen

The fourteen elements following actinium are known as

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Lanthanones

Lanthanides

Rare earths

Actinides

______ is called milk of magnesia

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NaOH

KOH

LiOH

None

During the mechanism of aldol condensation a/an ______ is formed

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Oxide

Alkali

Alkoxide ion

None of these

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