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huy > pmqa > Flashcards

pmqa Flashcards

1
Q

remove stain of potassium permanganate

A

oxalic acid

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1
Q

non-aqueous titrant ?

A

perchloric acid

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2
Q

whiten ash in ash content determination and determine residue on ignition

A

sulfuric acid

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3
Q

degree of alcohol in specific gravity using pycnometer

A

15.56

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4
Q

determines hardness of water, uses chelating agent EDTA

A

complexation reaction

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5
Q

remove alcohol-driven compounds

A

loss on drying

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6
Q

excess emission ex. vit b1, b2, phosphorus

A

fluorometric emission

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7
Q

assay method for assay of methadione

A

cerimetry

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8
Q

2 ex of electrochemical method

A
  • voltammetry
  • potentiometry
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9
Q

voltage of ion compounds, uses pH meter

A

potentiometry

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10
Q

uses polarography

A

voltammetry

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11
Q

measurement of light in visible region

A

colorimetry

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12
Q

ex is atomic absorption spectrophotometry

A

flame emission or flame photometry

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13
Q

assay for fixed oils or wax

A

biological assay

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14
Q

3D figure of molecules

A

NMR absorption

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15
Q

instrument for optical rotation

A

polarimeter

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16
Q

bending of light, uses refractometer

A

refraction of light

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17
Q

dissolution temp

A

37±0.5

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18
Q

disintegration temp

A

37±2

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19
Q

tumbling machine

A

friability

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20
Q

no of samples for content uniformity

A

10, 90-120 average

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21
Q

no of samples for weight uniformity

A

20, NMT 2%

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22
Q

aka lover’s ink

A

cobalt chloride

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23
Q

color of cobalt chloride when dry

A

blue

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24
Q

color of cobalt chloride when wet

A

pink

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25
Q

stoke’s monsanto SL, C

A

4-10 kg

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26
Q

stoke’s monsanto PUT

A

2-3 kg

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27
Q

stoke’s monsanto B

A

8-10 kg

28
Q

disintegration PUT

A

NMT 30 mins

29
Q

disintegration SL, C

A

3 mins

30
Q

disintegration B

A

4 hrs

31
Q

disintegration E

A

5 mins

32
Q

disintegration SGF

A

1 hour

33
Q

disintegration SIF

A

1 hour or varies

34
Q

suitable for magmas and gelatinous product

A

decantation

35
Q

2 principles of molecular aggregation

A
  • precipitation
  • crystallization
36
Q

increasing concentration of solute

A

supersaturation

37
Q

finely divided, separation done without filter

A

clarification

38
Q

done with filter, not prism

A

colorimetry

39
Q

extremely large

A

cotton filter

40
Q

highly reactive

A

glass wool

41
Q

jena glass

A

sintered-glass

42
Q

evaporation of solvent from a solution or cooling solution

A

supersaturation

43
Q

atomization of solid or 1 or more solids

A

spray drying

44
Q

1 1/2 to 60 inches diameter

A

coarse crusher

45
Q

used in mineral crushing industry

A

coarse crusher

46
Q

20-200 mesh

A

intermediate grinders

47
Q

pass through 200 mesh

A

fine grinding mills

48
Q

3 broad categories of comminution

A
  • coarse crusher
  • intermediate grinders
  • fine grinding mills
49
Q

3 basic actions of comminution

A
  • attrition
  • rolling
  • impact
50
Q

same direction, different rate of speed

A

roller mills

51
Q

provides particle size reduction mainly through compression crushing and shear

A

roller mills

52
Q

enclosed with a chamber containing a grid, on the upper part is the feed hopper

A

hammer mills

53
Q

rotating seive

A

centrifugal-impact mills and seives

54
Q

the mill consists of a nonrotating bar or stator that is fixed within a rotating sieve basket

A

centrifugal-impact mills and seives

55
Q

reduce particle size of fibrous materials

A

cutter mills

56
Q

horizontal rotor

A

cutter mills

57
Q

nonrotating bar or stator

A

centrifugal-impact mills and seives

58
Q

2 stones or steel grinding plates

A

attrition mill

59
Q

these mills are most suitable for friable or medium-hard, free-flowing material

A

attrition mills

60
Q

2 heavy granite stones, results into fine powder

A

chaser mills

61
Q

produces pulverization with a minimum loss of material

A

pebble or ball mills

62
Q

other names for pebble or ball mills

A

pot mill or jar mill

63
Q

principle of pebble or ball mills

A

attrition and impact

64
Q

the shell is vibrated at some at some suitable frequency, rather than rotated

A

vibrating ball mills

65
Q

used for pulverizing and classifying extremely small particles of many materials

A

fluid-energy mills

66
Q

the material to be pulverized is swept into violent turbulence by the sonic and supersonic velocity of the streams

A

fluid-energy mills

67
Q

size reduction of heat-sensitive substances

A

centrifugal-impact pulverizes

68
Q

effective for the reduction of the particle size of a wide variety of materials ranging from very soft, organic chemicals to hard, abrasive minerals

A

centrifugal-impact pulverizes

huy (8 decks)

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