Question # 1

At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in

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pressure

No. of moles

Volume

all of these

Isozymes are the enzymes which:

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have similar chemical properties

have similar physical properties

have different physical and chemical properties

The standard electrode potential of hydrogen is arbitrarily taken at 298k is

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1.00volt

0.10 volt

0.00 volt

10.0 volt

Molecular mass of PVC is (DP = 1200)

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63000

75000

75600

80,000

Which of the following has no hydrogen-bonding

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Diethyl ether

Water

Ethyl alcohol

Phenol

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

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Variable Oxidation state of is related to transition elements

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empty d-subshells

Completely filled

Partially filled d-subshell

d-d transition

The element which shows highest binding energy

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V

T

So

Cr

Chemical like Al₂(SO₄) or alum are used in purification of water druing step:

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aeration

coagulation

chlorination

treatment

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

Major food factors are:

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Fats and oils

Carbohydrates

Proteins

All of these

The iron obtained from blast furnace is

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Pig iron

Wrought ion

Soft ion

Steel

Specific conductivity of a solution

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Increases with dilution

Decreases with dilution

Remains unchanged with dilution

Depends on mass of electrolyte

Scientific study of fermentation was first made by

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Buchner

Liebig

Biot

Pasteur

The mass of one mole of proton is

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1.008 g

0.184 g

1.673 g

1.008 mg

In a group, the ionization energy

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Increase

Decreases

Remain constant

First increases then decreases

A limiting reactant is one which according to the stoichiometric equation

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Has excess mass

Has least mass

Has excess number of moles

Has least number of moles

Benzophenone can be converted into benzene using

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Fused alkali

Anhydrous AlCl₃

Sodium amalgam in water

Acidfied dichromate

Carbon monoxide is pollutant as it

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Inactivates nerves

Inhibits glycolysis

Combines with oxygen

Combines with hemoglobin

Swage water is purified by

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Microorganisms

Light

Fishes

Aquatic plants

Kolb's method is not useful for the production of

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Methane

Ethane

Propane

Butane

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