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EXERCISE 1
34問 • 8ヶ月前
  • HERSHEY VALERIE BERNARDINO
    • 通報

    問題一覧

  • 1

    A systemic approach that can give a satisfactory results in identifying elements in organic compounds

    qualitative analysis

  • 2

    Qualitative chemical tests higly rely on _____ approach through observation of test resultts

    organoleptic

  • 3

    Positive result of reaction with lime water in detection of carbon and hydrogen

    clear solution turns turbid

  • 4

    Positive result of reaction with anhydrous cupric sulfate in detecting carbon and hyrdrogen

    white powder turns blue

  • 5

    Positive result in soda lime test to detect nitrogen

    characteristic pungent odor

  • 6

    Positive result in soda lime test to detect nitrogen

    red to blue litmus paper

  • 7

    Positive result of beilstein test to detect halogens

    green-colored flame

  • 8

    Positive result in silver nitrate test in detecting halogens

    formation of white precipitate

  • 9

    Positive result of lead acetate test in detecting sulfur

    formation of black precipitate

  • 10

    Positive result of ferrox test in detecting oxygen

    red to reddish-purple solution

  • 11

    Tests to detect carbon & hyrdogen

    reaction with lime water , reaction with anhydrous cupric sulfate

  • 12

    Test to detect nitrogen

    soda lime test

  • 13

    Tests to detect halogens

    beilstein test, silver nitrate test

  • 14

    Test to detect sulfur

    lead acetate test

  • 15

    Test to detect oxygen

    ferrox test

  • 16

    Ferrox paper is prepared by soaking a filter paper in _____ with equal parts of ferric chloride and ammonium thiocyanate

    methanol

  • 17

    Complex FeSCN2+ yields _____ as it is distributed through the filter paper and the organic compound containing oxygen

    deep red solution

  • 18

    Oxygen can be detected using iron (III) hexathiocyanatoferrate or _____

    ferrox paper

  • 19

    Iron (III) ammonium sulfate reacts with potassium thiocyanate to form iron (III) hexatiocyanatoferrate

    true

  • 20

    Albumin contains amino acid called _____, an amino acid with sulfhydryl group

    cysteine

  • 21

    In strongly _____ solution,, cysteine will react to lead ions and forms black precipitate

    basic

  • 22

    Causes the breaking of polypeptide chain

    heating

  • 23

    The presence of sulfur is identified by the production of _____ precipitate through lead acetate test

    brownish-black

  • 24

    Organic compound containing sulfur will yield ____ upon reaction with lead acetate

    lead sulfide

  • 25

    Halogen reacts with silver nitrate in the presence of dilute nitric acid forming _____ silver halide

    insoluble

  • 26

    Silver halide yields a white to light yellow precipitate, confirming the presence of _____

    halogen

  • 27

    In beilstein test, fluorine does not yield a _____ result

    positive

  • 28

    Cupric fluoride is not volatile

    true

  • 29

    Organic compound that can only be detected by soda lime test

    amino

  • 30

    Alkaline solution obtained by extracting the fused mass in water is called sodium extract or _____ extract

    Lassaigne's

  • 31

    Nitrogen, halogens, and sulfur are difficult to detect because they do not ionize due to its _____ bond

    covalent

  • 32

    To convert halogens, nitrogens, and sulfur, it must be converted to inorganic ions by fusing it with _____ metal

    sodium

  • 33

    CO2 is detected by

    lime water

  • 34

    H2O is detected by

    anhydrous cupric sulfate

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    問題一覧

  • 1

    A systemic approach that can give a satisfactory results in identifying elements in organic compounds

    qualitative analysis

  • 2

    Qualitative chemical tests higly rely on _____ approach through observation of test resultts

    organoleptic

  • 3

    Positive result of reaction with lime water in detection of carbon and hydrogen

    clear solution turns turbid

  • 4

    Positive result of reaction with anhydrous cupric sulfate in detecting carbon and hyrdrogen

    white powder turns blue

  • 5

    Positive result in soda lime test to detect nitrogen

    characteristic pungent odor

  • 6

    Positive result in soda lime test to detect nitrogen

    red to blue litmus paper

  • 7

    Positive result of beilstein test to detect halogens

    green-colored flame

  • 8

    Positive result in silver nitrate test in detecting halogens

    formation of white precipitate

  • 9

    Positive result of lead acetate test in detecting sulfur

    formation of black precipitate

  • 10

    Positive result of ferrox test in detecting oxygen

    red to reddish-purple solution

  • 11

    Tests to detect carbon & hyrdogen

    reaction with lime water , reaction with anhydrous cupric sulfate

  • 12

    Test to detect nitrogen

    soda lime test

  • 13

    Tests to detect halogens

    beilstein test, silver nitrate test

  • 14

    Test to detect sulfur

    lead acetate test

  • 15

    Test to detect oxygen

    ferrox test

  • 16

    Ferrox paper is prepared by soaking a filter paper in _____ with equal parts of ferric chloride and ammonium thiocyanate

    methanol

  • 17

    Complex FeSCN2+ yields _____ as it is distributed through the filter paper and the organic compound containing oxygen

    deep red solution

  • 18

    Oxygen can be detected using iron (III) hexathiocyanatoferrate or _____

    ferrox paper

  • 19

    Iron (III) ammonium sulfate reacts with potassium thiocyanate to form iron (III) hexatiocyanatoferrate

    true

  • 20

    Albumin contains amino acid called _____, an amino acid with sulfhydryl group

    cysteine

  • 21

    In strongly _____ solution,, cysteine will react to lead ions and forms black precipitate

    basic

  • 22

    Causes the breaking of polypeptide chain

    heating

  • 23

    The presence of sulfur is identified by the production of _____ precipitate through lead acetate test

    brownish-black

  • 24

    Organic compound containing sulfur will yield ____ upon reaction with lead acetate

    lead sulfide

  • 25

    Halogen reacts with silver nitrate in the presence of dilute nitric acid forming _____ silver halide

    insoluble

  • 26

    Silver halide yields a white to light yellow precipitate, confirming the presence of _____

    halogen

  • 27

    In beilstein test, fluorine does not yield a _____ result

    positive

  • 28

    Cupric fluoride is not volatile

    true

  • 29

    Organic compound that can only be detected by soda lime test

    amino

  • 30

    Alkaline solution obtained by extracting the fused mass in water is called sodium extract or _____ extract

    Lassaigne's

  • 31

    Nitrogen, halogens, and sulfur are difficult to detect because they do not ionize due to its _____ bond

    covalent

  • 32

    To convert halogens, nitrogens, and sulfur, it must be converted to inorganic ions by fusing it with _____ metal

    sodium

  • 33

    CO2 is detected by

    lime water

  • 34

    H2O is detected by

    anhydrous cupric sulfate