IODIMETRIC AND IODOMETRIC METHODS Flashcards

1
Q
A
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2
Q

Is a direct analysis of REDUCING AGENT such as thiosulfate and arsenates by the use of IODINE

A

IODIMETRY

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3
Q

Is an indirect analysis of OXIDIZING AGENT such as ferric and cupric salts and is reduced with excess potassium iodide and the Iodine produced is titrated with a standard solution of Sodium thiosulfates.

A

IODIMETRY

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4
Q

INDICATOR IN IODIMETRY

A

STARCH

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5
Q

ASSAY OF ASCORBIC ACID:
titrant

A

0.1N IODINE

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6
Q

ASSAY OF ASCORBIC ACID:
indicator

A

STARCH

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7
Q

ASSAY OF ASCORBIC ACID:
endpoint

A

BLUE

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8
Q

ASSAY OF SODIUM HYPOCHLORITE:
titrant

A

0.1N SODIUM THIOSULFATE

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9
Q

ASSAY OF SODIUM HYPOCHLORITE:
indicator

A

0.1N SODIUM THIOSULFATE

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10
Q

ASSAY OF SODIUM HYPOCHLORITE:
endpoint

A

DISAPPEARANCE OF BLUE COLOR

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11
Q

ASSAY OF STRONG IODINE:
titrant

A

0.1N POTASSIUM ARSENITE

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12
Q

ASSAY OF STRONG IODINE:
indicator

A

STARCH

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13
Q

ASSAY OF STRONG IODINE:
endpoint

A

BLUE

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14
Q

in oxidation-reduction with 0.1N bromine (koppeshaar’s solution), ______ is employed as an oxidizing agent in the assay of aniline, phenol, & resorcinol

A

BROMINE

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15
Q

Bromine is liberated when the solution is

A

ACIDIFIED

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16
Q

ASSAY OF PHENOL:
titrant

A

0.1N BROMINE

17
Q

ASSAY OF PHENOL:
indicator

A

STARCH

18
Q

ASSAY OF PHENOL:
endpoint

A

DISAPPEARANCE OF BLUE COLOR

19
Q

may be used as the oxidizing agent in the assay of iodides, arsenite and other reducing agents

A

POTASSIUM IODATE

20
Q

The method depends upon the formation of iodine monochloride in strong HCl solution

A

OXIDATION-REDUCTION WITH POTASSIUM IODATE

21
Q

ASSAY OF POTASSIUM IODIDE:
titrant

A

0.5M POTASSIUM IODATE

22
Q

ASSAY OF POTASSIUM IODIDE:
indicator

A

STARCH

23
Q

ASSAY OF POTASSIUM IODIDE:
endpoint

A

DISAPPEARANCE OF BLUE COLOR

24
Q

The assays of sulfa drugs and other compounds containing an acrylamino group.

A

DIAZOTIZATION ASSAYS WITH SODIUM NITRITE