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PARAMOUNT CHEMISTRY 2

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

  • 1

    Metal which have lustrous appearance

    Iodine

  • 2

    Non metal which is very hard

    Carbon in form of diamond

  • 3

    Non metals reacts with oxygen to from

    Both Acidic and neutral

  • 4

    Non metal donot react with

    acid

  • 5

    When chlorine is passed through a solution of sodium bromide

    Both Sodium chloride and bromide

  • 6

    non metals reacts with chlorine to form

    covalent chlorides

  • 7

    Hydrogen reacts with chlorine to form covalent chlorides called

    Hydrogen chloride

  • 8

    Non metal react with hydrogen to form

    Covalent hydrides

  • 9

    It is an only non-metal with combine with hydrogen to form covalent hydrides called hydrogen sulphite

    Sulphur

  • 10

    It is used as catalyst in the preparation of ammonia by haber's process

    Iron

  • 11

    It is used for galvasizing iron

    zinc

  • 12

    What is used for electroplating

    Both Chromium and nickle

  • 13

    What is used for manufacturing of stainless steel

    Both Chromium and nickle

  • 14

    Which metal is used for making bullet proof alloy steel

    Zirconium

  • 15

    Metals found both in free state in combined state are

    Both copper and silver

  • 16

    The natural materials in which metals or their compounds are found in earth

    Mineral

  • 17

    Those mineral from which the metals can be extracted conveniently or profitablely are called

    ore

  • 18

    It is used to make vegetable oil or ghee

    hydrogenation

  • 19

    It is used for manufacturing of ammonia

    hydrogen

  • 20

    It is used as a fuel in rocket

    Liquid hydrogen

  • 21

    What is used in manufacturing of ammonia , nitric acid and fertilizers

    Nitrogen

  • 22

    It is used for preserve food materials

    Nitrogen

  • 23

    It is used to fumigte and making of gun powder

    Sulphur

  • 24

    It is used in valcanization of rubber

    Sulphur

  • 25

    Extraction of metals from their ore and refining is called

    metallurgy

  • 26

    It is used for manufacturing of sulphuric acid

    sulphur

  • 27

    The process of removal of unwanted material from their ore is known as

    concentration

  • 28

    Carbonate ore is converted into metal oxide by

    calcination

  • 29

    Sulphide oxide is converted into metal oxide by

    Roasting

  • 30

    Process of converting metal oxide into metal is known as

    Reduction

  • 31

    The undesireable material present in ore are known as

    Gaunge

  • 32

    The substance added to ore to remove gaunge is known as

    Flux

  • 33

    substance formed as a result of flux and gaunge is known as

    Flux

  • 34

    The process of removal of gaunge from ore is known as

    Concentration

  • 35

    Process of hearing ore above its melting point in excess aur to obtain pure metal is known as

    Smelting

  • 36

    The process of heating ore below its melting point in the presence of air to remove impurities and convert it into oxide

    Calcination

  • 37

    Process of crushing ore to reasonable size before the concentration of ore is known as

    Sintering

  • 38

    The reduction of metal oxide to form metal by using aluminium powder as a reducing agent is known as

    Thermite reaction

  • 39

    Iron obtained from blast furnace

    Pig iron

  • 40

    It is made by melting of pig iron with scrap iron

    cast iron

  • 41

    It is the purest form of iron also called

    Wrought iron

  • 42

    It is the purest form of iron and prepared by oxidatieve refining of iron pig

    wrought iron

  • 43

    It is used for making cables , automobile , aeroplane parts and pendulum

    Nickel steel

  • 44

    It is used for making cutting tools

    Chromium steel

  • 45

    It is used for making drilling equipment

    Tungsten steel

  • 46

    It is used for making helmets and railway lines

    manganese steel

  • 47

    It is used for making permanent magnets

    Alnico steel

  • 48

    It is the process of forming thick layer of aluminium oxide on an aluminum object by making it anode during of electrolysis of dilute sulphur acid

    Anodizing

  • 49

    It is a homogeneous mixture of two or more metals

    alloy

  • 50

    oxygen belongs to which group of periodic table

    16

  • 51

    oxygen exists as

    diatomic molecule

  • 52

    oxygen is prepared in laboratory by heating potassium chlorate

    potassium chlorate with MnO²

  • 53

    Oxygen is prepared on large scale by

    fractional distillation

  • 54

    Pure water is obtained by

    electrolysis of water

  • 55

    It is the first element in periodic table

    Hydrogen

  • 56

    Relative atomic mass of hydrogen

    1.008

  • 57

    Density of hydrogen is

    0.08988

  • 58

    Hydrogen is prepared in laboratory by action of

    dilute sulphuric acid

  • 59

    Industrial preparation of hydrogen is by

    Bosch process

  • 60

    Nitrogen is prepaid commercially from air by

    Both Liquefication and fractional distillation

  • 61

    Carbon dioxide is prepared by action of dilute acids by

    Fragmentation of sugar

  • 62

    Carbon dioxide in laboratory is prepared by treating marble pieces with

    Dilute hydrochloric acid

  • 63

    water consists hydrogen and oxygen in the ratio of what by volume

    2:1

  • 64

    water consists hydrogen and oxygen in the ratio of what by mass

    1:8

  • 65

    water was known by

    cavendish

  • 66

    Hardness of water is due to presence of Soluble Salts of

    Both calcium and magnesium

  • 67

    Soaps are which salts of fatty acids

    Sodium salts

  • 68

    Temporary hardness is due to presence of

    Soluble bicarbones of calcium and magnesium

  • 69

    Permanent hardness is due to presence of

    Chlorides and sulphates of calcium and magnesium

  • 70

    process of removal of metallic ions responsible for hardness of water is known as

    Softening of water

  • 71

    Temporary hardness of water can be removed by

    Both boiling and adding lime

  • 72

    Permanent hardness is removed by

    Both washing soda and caustic soda

  • 73

    Heavy water was discovered by

    Urey

  • 74

    Heavy water is prepared by

    Fractional distillation

  • 75

    Substance which have the same Chemical properties but different physical properties are known as

    allotropes

  • 76

    Refractive index of diamond

    2.415

  • 77

    Density of Graphite

    2.25

  • 78

    what is used in manufacture of water gas

    coke

  • 79

    What is used in manufacture of Graphite

    Coke

  • 80

    What is used as neutron moderator

    Heavy water

  • 81

    What is known as Fools gold

    Iron pyrite

  • 82

    It is used as anti-knocking compound

    Tetra ethyl lead

  • 83

    fuse wire is made up of

    Both lead and tin

  • 84

    Onion and garlic smell due to

    Potassium

  • 85

    It is used in nuclear reactor to slow down the speed of neutron

    Cadmium rod

  • 86

    what is extracted from pitch blende

    Radium

  • 87

    what is known as Pearl ash

    Potassium carbonate

  • 88

    Calcium hydroxide is also called

    hydrolith

  • 89

    When one of the metal is Mercury then the alloy is known as

    Amalgam

  • 90

    Steel is heated to the temperature well below red hot and then cooled which turns it soft and the process is called

    anneating

  • 91

    when steel is heated to bright redness and then suddenly cooled with water or oil it becomes extraordinary hard and brittle , this process is called

    quenching

  • 92

    It is a process of forming a thick oxide layer of aluminium

    Anodizing

  • 93

    Carbon always form

    covalent bond

  • 94

    It is an allotropes of carbon containing cluster of 60 carbon atoms combining together in a spherical molecule

    Buck-Ministers fullerence

  • 95

    Buck-Ministers fullerence have how many hexagon

    20

  • 96

    Buck-Ministers fullerence have how many Pentagon

    12

  • 97

    Compounds of carbon are known as

    organic compound

  • 98

    Study of carbon compound is known as

    Organic Chemistry

  • 99

    Hydrocarbon are made up of

    Both hydrogen and carbon

  • 100

    Who arranged certain elements with similar properties in group of three in such a way that atomic mass of the middle element is average of other two

    Dobernier

  • PARAMOUNT CHEMISTRY

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    問題一覧

  • 1

    Metal which have lustrous appearance

    Iodine

  • 2

    Non metal which is very hard

    Carbon in form of diamond

  • 3

    Non metals reacts with oxygen to from

    Both Acidic and neutral

  • 4

    Non metal donot react with

    acid

  • 5

    When chlorine is passed through a solution of sodium bromide

    Both Sodium chloride and bromide

  • 6

    non metals reacts with chlorine to form

    covalent chlorides

  • 7

    Hydrogen reacts with chlorine to form covalent chlorides called

    Hydrogen chloride

  • 8

    Non metal react with hydrogen to form

    Covalent hydrides

  • 9

    It is an only non-metal with combine with hydrogen to form covalent hydrides called hydrogen sulphite

    Sulphur

  • 10

    It is used as catalyst in the preparation of ammonia by haber's process

    Iron

  • 11

    It is used for galvasizing iron

    zinc

  • 12

    What is used for electroplating

    Both Chromium and nickle

  • 13

    What is used for manufacturing of stainless steel

    Both Chromium and nickle

  • 14

    Which metal is used for making bullet proof alloy steel

    Zirconium

  • 15

    Metals found both in free state in combined state are

    Both copper and silver

  • 16

    The natural materials in which metals or their compounds are found in earth

    Mineral

  • 17

    Those mineral from which the metals can be extracted conveniently or profitablely are called

    ore

  • 18

    It is used to make vegetable oil or ghee

    hydrogenation

  • 19

    It is used for manufacturing of ammonia

    hydrogen

  • 20

    It is used as a fuel in rocket

    Liquid hydrogen

  • 21

    What is used in manufacturing of ammonia , nitric acid and fertilizers

    Nitrogen

  • 22

    It is used for preserve food materials

    Nitrogen

  • 23

    It is used to fumigte and making of gun powder

    Sulphur

  • 24

    It is used in valcanization of rubber

    Sulphur

  • 25

    Extraction of metals from their ore and refining is called

    metallurgy

  • 26

    It is used for manufacturing of sulphuric acid

    sulphur

  • 27

    The process of removal of unwanted material from their ore is known as

    concentration

  • 28

    Carbonate ore is converted into metal oxide by

    calcination

  • 29

    Sulphide oxide is converted into metal oxide by

    Roasting

  • 30

    Process of converting metal oxide into metal is known as

    Reduction

  • 31

    The undesireable material present in ore are known as

    Gaunge

  • 32

    The substance added to ore to remove gaunge is known as

    Flux

  • 33

    substance formed as a result of flux and gaunge is known as

    Flux

  • 34

    The process of removal of gaunge from ore is known as

    Concentration

  • 35

    Process of hearing ore above its melting point in excess aur to obtain pure metal is known as

    Smelting

  • 36

    The process of heating ore below its melting point in the presence of air to remove impurities and convert it into oxide

    Calcination

  • 37

    Process of crushing ore to reasonable size before the concentration of ore is known as

    Sintering

  • 38

    The reduction of metal oxide to form metal by using aluminium powder as a reducing agent is known as

    Thermite reaction

  • 39

    Iron obtained from blast furnace

    Pig iron

  • 40

    It is made by melting of pig iron with scrap iron

    cast iron

  • 41

    It is the purest form of iron also called

    Wrought iron

  • 42

    It is the purest form of iron and prepared by oxidatieve refining of iron pig

    wrought iron

  • 43

    It is used for making cables , automobile , aeroplane parts and pendulum

    Nickel steel

  • 44

    It is used for making cutting tools

    Chromium steel

  • 45

    It is used for making drilling equipment

    Tungsten steel

  • 46

    It is used for making helmets and railway lines

    manganese steel

  • 47

    It is used for making permanent magnets

    Alnico steel

  • 48

    It is the process of forming thick layer of aluminium oxide on an aluminum object by making it anode during of electrolysis of dilute sulphur acid

    Anodizing

  • 49

    It is a homogeneous mixture of two or more metals

    alloy

  • 50

    oxygen belongs to which group of periodic table

    16

  • 51

    oxygen exists as

    diatomic molecule

  • 52

    oxygen is prepared in laboratory by heating potassium chlorate

    potassium chlorate with MnO²

  • 53

    Oxygen is prepared on large scale by

    fractional distillation

  • 54

    Pure water is obtained by

    electrolysis of water

  • 55

    It is the first element in periodic table

    Hydrogen

  • 56

    Relative atomic mass of hydrogen

    1.008

  • 57

    Density of hydrogen is

    0.08988

  • 58

    Hydrogen is prepared in laboratory by action of

    dilute sulphuric acid

  • 59

    Industrial preparation of hydrogen is by

    Bosch process

  • 60

    Nitrogen is prepaid commercially from air by

    Both Liquefication and fractional distillation

  • 61

    Carbon dioxide is prepared by action of dilute acids by

    Fragmentation of sugar

  • 62

    Carbon dioxide in laboratory is prepared by treating marble pieces with

    Dilute hydrochloric acid

  • 63

    water consists hydrogen and oxygen in the ratio of what by volume

    2:1

  • 64

    water consists hydrogen and oxygen in the ratio of what by mass

    1:8

  • 65

    water was known by

    cavendish

  • 66

    Hardness of water is due to presence of Soluble Salts of

    Both calcium and magnesium

  • 67

    Soaps are which salts of fatty acids

    Sodium salts

  • 68

    Temporary hardness is due to presence of

    Soluble bicarbones of calcium and magnesium

  • 69

    Permanent hardness is due to presence of

    Chlorides and sulphates of calcium and magnesium

  • 70

    process of removal of metallic ions responsible for hardness of water is known as

    Softening of water

  • 71

    Temporary hardness of water can be removed by

    Both boiling and adding lime

  • 72

    Permanent hardness is removed by

    Both washing soda and caustic soda

  • 73

    Heavy water was discovered by

    Urey

  • 74

    Heavy water is prepared by

    Fractional distillation

  • 75

    Substance which have the same Chemical properties but different physical properties are known as

    allotropes

  • 76

    Refractive index of diamond

    2.415

  • 77

    Density of Graphite

    2.25

  • 78

    what is used in manufacture of water gas

    coke

  • 79

    What is used in manufacture of Graphite

    Coke

  • 80

    What is used as neutron moderator

    Heavy water

  • 81

    What is known as Fools gold

    Iron pyrite

  • 82

    It is used as anti-knocking compound

    Tetra ethyl lead

  • 83

    fuse wire is made up of

    Both lead and tin

  • 84

    Onion and garlic smell due to

    Potassium

  • 85

    It is used in nuclear reactor to slow down the speed of neutron

    Cadmium rod

  • 86

    what is extracted from pitch blende

    Radium

  • 87

    what is known as Pearl ash

    Potassium carbonate

  • 88

    Calcium hydroxide is also called

    hydrolith

  • 89

    When one of the metal is Mercury then the alloy is known as

    Amalgam

  • 90

    Steel is heated to the temperature well below red hot and then cooled which turns it soft and the process is called

    anneating

  • 91

    when steel is heated to bright redness and then suddenly cooled with water or oil it becomes extraordinary hard and brittle , this process is called

    quenching

  • 92

    It is a process of forming a thick oxide layer of aluminium

    Anodizing

  • 93

    Carbon always form

    covalent bond

  • 94

    It is an allotropes of carbon containing cluster of 60 carbon atoms combining together in a spherical molecule

    Buck-Ministers fullerence

  • 95

    Buck-Ministers fullerence have how many hexagon

    20

  • 96

    Buck-Ministers fullerence have how many Pentagon

    12

  • 97

    Compounds of carbon are known as

    organic compound

  • 98

    Study of carbon compound is known as

    Organic Chemistry

  • 99

    Hydrocarbon are made up of

    Both hydrogen and carbon

  • 100

    Who arranged certain elements with similar properties in group of three in such a way that atomic mass of the middle element is average of other two

    Dobernier