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LUCENT CHEMISTRY 2

LUCENT CHEMISTRY 2
100問 • 2年前
  • Harsh Daddy
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    問題一覧

  • 1

    Size of suspension is more than

    10⁶

  • 2

    It is a heterogeneous solution in which size of atom is more than 10⁶

    suspension

  • 3

    It is a heterogeneous solution in which size of atoms lies between

    10⁹ to 10⁶

  • 4

    The colloidal system with solid as a dispersed phase and liquid is a dispersed medium known as

    Sols

  • 5

    rubber gloves are manufactured from rubber sols by the process of

    electroplating

  • 6

    The collidial solution with solid or liquid as dispersed phase and gas as a dispersed medium are known as

    aerosols

  • 7

    In smoke dispersed phase is

    solid

  • 8

    In smoke dispersed medium is

    Gas

  • 9

    In fog , dispersed phase is

    liquid

  • 10

    In fog , dispersed medium is

    Gas

  • 11

    It is a collidial solution in which dispersed phase is gas and dispersed medium is liquid

    foam

  • 12

    It is the process of separating the particles of colloids from the crystalloids by diffusion of mixture through animal membrane

    dialysis

  • 13

    The ion responsible for the neuterlisation of charge on colloidal particles is called

    congulation ion or flocculating ion

  • 14

    The process of neuterlisation of charge on colloidal particles is

    coagulation

  • 15

    The movement of colloidal particles towards a particles electrodes under the influence of electric field is called

    electrophoresis

  • 16

    whose theory states that acid gives hydrogen ions

    arrhenius theory

  • 17

    whose gave the concept that acid can donate a proton

    Bronsted and Lowry concept

  • 18

    whose theory states that acid can accept electron

    Lewis theory

  • 19

    The number of removal hydrogen Ions from an acid is called

    basicity of that acid

  • 20

    who stated that bases accept proton

    bronsted and Lowry

  • 21

    who stated that base can donate electron

    Lewis

  • 22

    Number of removal of hydroxyl ion from base is

    acidity of base

  • 23

    P.H of our body

    7.0 to 7.8

  • 24

    Tooth decay starts at what P.H

    5.5

  • 25

    A solution whose P.H is not attered to great extent by the addition of small quantities of either an acid or base is called

    buffer solution

  • 26

    buffer solution can be obtained by mixing of acid and base with

    strong base

  • 27

    P.H of milk is

    6.5

  • 28

    P.H of blood is

    7.4

  • 29

    P.H of gastric juice is

    1.2

  • 30

    acid rain happens when acid falls from

    5.6

  • 31

    Which acid is known as oil of vitrol

    sulphuric acid

  • 32

    at a constant temperature the volume of a definite mass of a gas is directly proportional to pressure

    Boyles law

  • 33

    At a constant pressure , the volume of a definite mass of a gas is directly proportional to the temperature

    Charles law

  • 34

    At constant volume , the pressure of given mass of a gas is directly proportional to the temperature in Kelvin

    Gay-lussacs law

  • 35

    At constant temperature and pressure the volume of gas is directly proportional to the number of molecule

    Avargado gas law

  • 36

    Pressure × volume = number of mole × gas constant × temperature

    ideal gas equation

  • 37

    The process of intermixing of gases irrespectively of the density relationship and without the effect of external agency is called

    diffusion of gases

  • 38

    The rate of diffusion of gases are inversely proportional to the square root of their density

    grahams law of diffusion

  • 39

    It states that is two or more gases which dont react chemically are enclosed in a vessel , the total pressure of the gaseous mixture is equal to the sum of the partial pressure that each gases which exert pressure when enclosed separately in the same vessel at the constant temperature

    Daltons law of partial pressure

  • 40

    It is the branch of Chemistry which deals with the energy changes that are taking place

    therodynamics

  • 41

    It is the specific part of universe in which energy changes are taking place

    system

  • 42

    It is the rest part of universe except system

    surrounding

  • 43

    where both mass and energy can be exchanged with the surrounding

    open system

  • 44

    there is only exchange of energy with surrounding and no exchange in mass takes place

    closed system

  • 45

    where neither mass nor energy can be exchanged with the surrounding

    isolated system

  • 46

    Are the properties which do not depend upon either the size of the system or quantity of the matter present in it but they depend upon the nature of substance present in system , example pressure , temperature etc

    Intensive properties of a system

  • 47

    The properties which depends upon the quantity of the matter present in the system ex mass volume energy etc

    extensive properties of system

  • 48

    It is said to be isothermal in case the temperature of the system remain fixed or constant

    isothermal process

  • 49

    There is no exchange of heat between the system and surrounding is possible

    adiabatic process

  • 50

    It is said to be isobaric in which the pressure remains constant throughout

    isobaric process

  • 51

    Carried out at a constant volume

    isochoric process

  • 52

    when a system undergoes a series of changes and finally returning to initial state

    cyclic process

  • 53

    The change in heat that accompanies a chemical reaction represented by a balanced chemical equation is called

    heat of equation

  • 54

    The heat changes during formation of one mole of a compound from its constituing element at a given temperature and pressure it is called

    heat of formation

  • 55

    heat energy during combustion of one mole of a substance in excess of air or oxygen is called

    Heat of combustion

  • 56

    Amount of heat produced when one gram of substance is completely burned or oxidised is called

    efficiency of substance

  • 57

    The change in heat when one gram equivalent of an acid and one gram of equivalent of base present in their aqueous solution to neuterlise each other is called

    heat of neuterlisation

  • 58

    The change in heat when one mole of a substance is dissolved in such a larger excess of solvent at a given temperature that the further addition of solvent does not produce any heat energy is called

    heat of solution

  • 59

    The change in heat when mole of the annhydrous salt changes to a hydrated salt by combining with specific number of moles of water

    enthalpy of hydration

  • 60

    heat energy required to change 1kg of liquid to gas at atmosphere pressure at its boiling points

    latent heat of vaporization

  • 61

    It is the amount of heat energy required to change 1kg of solid into liquid at its boiling points

    Latent heat of fusion

  • 62

    These are the substance which allow the electricity to pass through them in their molten States or in the form of their aqueous solution and undergo chemical decomposition

    electrolyte

  • 63

    The electrolyte which are almost completely dissociated into ions in solution are called

    strong electrolysis

  • 64

    the electrolyte which do not ionise completely in solution are called

    weak electrolysis

  • 65

    The process of chemical decomposition of an electrolyte by passage of electric current through its molten state or its solution is called

    electrolysis

  • 66

    In order to pass through current through a electrolyte in molten state or in aqueous solution, two Rods or plates are needed to connect with the terminal of battery . these rods and plates are

    electrodes

  • 67

    The electrode which is attached to the positive terminal of the battery is called

    anode

  • 68

    oxidation occurs at

    anode

  • 69

    The electrode which is attached to negative terminal of battery is called

    cathode

  • 70

    Reduction occurs at

    cathode

  • 71

    The amount of the substance deposited or liberated at any electrode is directly proportional to the quantity of charge passed

    Faraday first law of electrolysis

  • 72

    1 Faraday

    96500 C mol-¹

  • 73

    When some quantity of charge is passed through the solutions of two different electrolytes connected in series the masses of substances deposited at respective electrodes are directly proportional to their equivalent mass

    Faraday second law of electrolysis

  • 74

    It is the ease with which current flows through electrolyte

    conductance

  • 75

    Unit of conductance is

    siemens

  • 76

    The conductance of the solution of an electrolyte enclosed in a cell with two electrodes of unit area of cross section separated by one centimeter is called

    specific conductance

  • 77

    The conductance of all the ions produced by one gram equivalent of electrolyte in solution is known as

    equivalent conductance

  • 78

    A substance which have same Chemical properties but different physical properties are called

    allotropes

  • 79

    Black Diamond is called

    carbonado

  • 80

    first organic compounds produced in laboratory is

    urea

  • 81

    natural source of hydrocarbon

    petroleum

  • 82

    what is used for artificial ripening of fruit

    Ethylene

  • 83

    homocyclic compound which contain atleast one benzene ring in which carbon atoms are linked to one another by alternate single or double bond

    aromatic hydrocarbon

  • 84

    It is the mixture of carbon monoxide and hydrogen obtained by action of steam on a red hot coke at 1000°C

    water gas

  • 85

    it is a mixture of Co & N2 prepared by Burning coke in limited supply of air

    producer gas

  • 86

    It is a mixture of H2,CH4 and other gases like N2,C2,H4 obtained by destructive distillation of coal at about 1000°C

    coal gas

  • 87

    It is a mixture of H2,CH4,C2H4,CO and other gases like Co² and obtained by thermal cracking of kerosene oil

    oil gas

  • 88

    It contains CH4,CO & H² and produced by fermentation of gobar gas in absence of air

    gobar gas

  • 89

    It is a mixture of hydrocarbon viz methane 85% , ethane , propane , butane etc

    natural gas

  • 90

    L.P.G is a mixture of

    butane and insolutane with small amount of propane

  • 91

    Smell of leakage of LPG is due to

    Ethyl mercaptan

  • 92

    Father of modern Chemistry

    lavoisier

  • 93

    Bose-einstein condensation state was formed on

    1920

  • 94

    Oxygen in earth crust

    46.6

  • 95

    Silicon in earth crust

    27.7

  • 96

    aluminium in earth crust

    8

  • 97

    iron in earth crust

    5

  • 98

    calcium in earth crust

    3.6

  • 99

    potassium in earth crust

    2.8

  • 100

    magnesium in earth crust

    2.1

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    問題一覧

  • 1

    Size of suspension is more than

    10⁶

  • 2

    It is a heterogeneous solution in which size of atom is more than 10⁶

    suspension

  • 3

    It is a heterogeneous solution in which size of atoms lies between

    10⁹ to 10⁶

  • 4

    The colloidal system with solid as a dispersed phase and liquid is a dispersed medium known as

    Sols

  • 5

    rubber gloves are manufactured from rubber sols by the process of

    electroplating

  • 6

    The collidial solution with solid or liquid as dispersed phase and gas as a dispersed medium are known as

    aerosols

  • 7

    In smoke dispersed phase is

    solid

  • 8

    In smoke dispersed medium is

    Gas

  • 9

    In fog , dispersed phase is

    liquid

  • 10

    In fog , dispersed medium is

    Gas

  • 11

    It is a collidial solution in which dispersed phase is gas and dispersed medium is liquid

    foam

  • 12

    It is the process of separating the particles of colloids from the crystalloids by diffusion of mixture through animal membrane

    dialysis

  • 13

    The ion responsible for the neuterlisation of charge on colloidal particles is called

    congulation ion or flocculating ion

  • 14

    The process of neuterlisation of charge on colloidal particles is

    coagulation

  • 15

    The movement of colloidal particles towards a particles electrodes under the influence of electric field is called

    electrophoresis

  • 16

    whose theory states that acid gives hydrogen ions

    arrhenius theory

  • 17

    whose gave the concept that acid can donate a proton

    Bronsted and Lowry concept

  • 18

    whose theory states that acid can accept electron

    Lewis theory

  • 19

    The number of removal hydrogen Ions from an acid is called

    basicity of that acid

  • 20

    who stated that bases accept proton

    bronsted and Lowry

  • 21

    who stated that base can donate electron

    Lewis

  • 22

    Number of removal of hydroxyl ion from base is

    acidity of base

  • 23

    P.H of our body

    7.0 to 7.8

  • 24

    Tooth decay starts at what P.H

    5.5

  • 25

    A solution whose P.H is not attered to great extent by the addition of small quantities of either an acid or base is called

    buffer solution

  • 26

    buffer solution can be obtained by mixing of acid and base with

    strong base

  • 27

    P.H of milk is

    6.5

  • 28

    P.H of blood is

    7.4

  • 29

    P.H of gastric juice is

    1.2

  • 30

    acid rain happens when acid falls from

    5.6

  • 31

    Which acid is known as oil of vitrol

    sulphuric acid

  • 32

    at a constant temperature the volume of a definite mass of a gas is directly proportional to pressure

    Boyles law

  • 33

    At a constant pressure , the volume of a definite mass of a gas is directly proportional to the temperature

    Charles law

  • 34

    At constant volume , the pressure of given mass of a gas is directly proportional to the temperature in Kelvin

    Gay-lussacs law

  • 35

    At constant temperature and pressure the volume of gas is directly proportional to the number of molecule

    Avargado gas law

  • 36

    Pressure × volume = number of mole × gas constant × temperature

    ideal gas equation

  • 37

    The process of intermixing of gases irrespectively of the density relationship and without the effect of external agency is called

    diffusion of gases

  • 38

    The rate of diffusion of gases are inversely proportional to the square root of their density

    grahams law of diffusion

  • 39

    It states that is two or more gases which dont react chemically are enclosed in a vessel , the total pressure of the gaseous mixture is equal to the sum of the partial pressure that each gases which exert pressure when enclosed separately in the same vessel at the constant temperature

    Daltons law of partial pressure

  • 40

    It is the branch of Chemistry which deals with the energy changes that are taking place

    therodynamics

  • 41

    It is the specific part of universe in which energy changes are taking place

    system

  • 42

    It is the rest part of universe except system

    surrounding

  • 43

    where both mass and energy can be exchanged with the surrounding

    open system

  • 44

    there is only exchange of energy with surrounding and no exchange in mass takes place

    closed system

  • 45

    where neither mass nor energy can be exchanged with the surrounding

    isolated system

  • 46

    Are the properties which do not depend upon either the size of the system or quantity of the matter present in it but they depend upon the nature of substance present in system , example pressure , temperature etc

    Intensive properties of a system

  • 47

    The properties which depends upon the quantity of the matter present in the system ex mass volume energy etc

    extensive properties of system

  • 48

    It is said to be isothermal in case the temperature of the system remain fixed or constant

    isothermal process

  • 49

    There is no exchange of heat between the system and surrounding is possible

    adiabatic process

  • 50

    It is said to be isobaric in which the pressure remains constant throughout

    isobaric process

  • 51

    Carried out at a constant volume

    isochoric process

  • 52

    when a system undergoes a series of changes and finally returning to initial state

    cyclic process

  • 53

    The change in heat that accompanies a chemical reaction represented by a balanced chemical equation is called

    heat of equation

  • 54

    The heat changes during formation of one mole of a compound from its constituing element at a given temperature and pressure it is called

    heat of formation

  • 55

    heat energy during combustion of one mole of a substance in excess of air or oxygen is called

    Heat of combustion

  • 56

    Amount of heat produced when one gram of substance is completely burned or oxidised is called

    efficiency of substance

  • 57

    The change in heat when one gram equivalent of an acid and one gram of equivalent of base present in their aqueous solution to neuterlise each other is called

    heat of neuterlisation

  • 58

    The change in heat when one mole of a substance is dissolved in such a larger excess of solvent at a given temperature that the further addition of solvent does not produce any heat energy is called

    heat of solution

  • 59

    The change in heat when mole of the annhydrous salt changes to a hydrated salt by combining with specific number of moles of water

    enthalpy of hydration

  • 60

    heat energy required to change 1kg of liquid to gas at atmosphere pressure at its boiling points

    latent heat of vaporization

  • 61

    It is the amount of heat energy required to change 1kg of solid into liquid at its boiling points

    Latent heat of fusion

  • 62

    These are the substance which allow the electricity to pass through them in their molten States or in the form of their aqueous solution and undergo chemical decomposition

    electrolyte

  • 63

    The electrolyte which are almost completely dissociated into ions in solution are called

    strong electrolysis

  • 64

    the electrolyte which do not ionise completely in solution are called

    weak electrolysis

  • 65

    The process of chemical decomposition of an electrolyte by passage of electric current through its molten state or its solution is called

    electrolysis

  • 66

    In order to pass through current through a electrolyte in molten state or in aqueous solution, two Rods or plates are needed to connect with the terminal of battery . these rods and plates are

    electrodes

  • 67

    The electrode which is attached to the positive terminal of the battery is called

    anode

  • 68

    oxidation occurs at

    anode

  • 69

    The electrode which is attached to negative terminal of battery is called

    cathode

  • 70

    Reduction occurs at

    cathode

  • 71

    The amount of the substance deposited or liberated at any electrode is directly proportional to the quantity of charge passed

    Faraday first law of electrolysis

  • 72

    1 Faraday

    96500 C mol-¹

  • 73

    When some quantity of charge is passed through the solutions of two different electrolytes connected in series the masses of substances deposited at respective electrodes are directly proportional to their equivalent mass

    Faraday second law of electrolysis

  • 74

    It is the ease with which current flows through electrolyte

    conductance

  • 75

    Unit of conductance is

    siemens

  • 76

    The conductance of the solution of an electrolyte enclosed in a cell with two electrodes of unit area of cross section separated by one centimeter is called

    specific conductance

  • 77

    The conductance of all the ions produced by one gram equivalent of electrolyte in solution is known as

    equivalent conductance

  • 78

    A substance which have same Chemical properties but different physical properties are called

    allotropes

  • 79

    Black Diamond is called

    carbonado

  • 80

    first organic compounds produced in laboratory is

    urea

  • 81

    natural source of hydrocarbon

    petroleum

  • 82

    what is used for artificial ripening of fruit

    Ethylene

  • 83

    homocyclic compound which contain atleast one benzene ring in which carbon atoms are linked to one another by alternate single or double bond

    aromatic hydrocarbon

  • 84

    It is the mixture of carbon monoxide and hydrogen obtained by action of steam on a red hot coke at 1000°C

    water gas

  • 85

    it is a mixture of Co & N2 prepared by Burning coke in limited supply of air

    producer gas

  • 86

    It is a mixture of H2,CH4 and other gases like N2,C2,H4 obtained by destructive distillation of coal at about 1000°C

    coal gas

  • 87

    It is a mixture of H2,CH4,C2H4,CO and other gases like Co² and obtained by thermal cracking of kerosene oil

    oil gas

  • 88

    It contains CH4,CO & H² and produced by fermentation of gobar gas in absence of air

    gobar gas

  • 89

    It is a mixture of hydrocarbon viz methane 85% , ethane , propane , butane etc

    natural gas

  • 90

    L.P.G is a mixture of

    butane and insolutane with small amount of propane

  • 91

    Smell of leakage of LPG is due to

    Ethyl mercaptan

  • 92

    Father of modern Chemistry

    lavoisier

  • 93

    Bose-einstein condensation state was formed on

    1920

  • 94

    Oxygen in earth crust

    46.6

  • 95

    Silicon in earth crust

    27.7

  • 96

    aluminium in earth crust

    8

  • 97

    iron in earth crust

    5

  • 98

    calcium in earth crust

    3.6

  • 99

    potassium in earth crust

    2.8

  • 100

    magnesium in earth crust

    2.1