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Pharmaceutical analysis - I
Pharmaceutical analysis - I
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Quiz on Unit I
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
lodine can be standardized using.
None of the above
Arsenic trioxide
Both A and B
Sodium thiosulphate
2
KMnO, reduces to Mn" in ..........
Basic
Neutral
Acidic
Both B & D
3
In the titration of oxalic acid using KMnO, in acidic medium, the best indicator is
KMnO4
Phenolphthalein
Iodine
Starch
4
In an electro chemical cell, reduction takes place at
It depends on the potential applying
Anode
Salt bridge
Cathode
5
Reduction means...........
Addition of oxygen
Removal of hydrogen
Removal of oxygen
Loss of electron
6
All of the following are oxidation, except
Gain of oxygen
Loss of proton
Increase in oxidation state
Loss of electrons
7
In Ceriometric titration which of the following indicator is used?
Ferroin
Methyl red
Starch
Phenolphthalein
8
The oxidation state of arsenic in arsenic trioxide is
6
5
3
4
9
Iodometric titrations, should be done in ….
Basic
Neutral
Acidic
None of the above
10
To increase solubility of ….........is added.
Potassium iodide
Solubilizing agent
Sodium iodide
Indicator
11
Which instrument is used to detection of end point ?
Potentiometer
Conductometer
a and b
None of the above
12
The endpoint of a titration involving the reaction of MnO4 − to Mn2+ can be detected by the ...
use of a pH probe
use of red or blue litmus
pink colour of the MnO4 − disappearing
addition of an indicator like methyl orange.
13
...............are also called as spot test
Self indicator
External indicator
Internal indicator
None of the above
14
Which of the following is a sensitive self indicator.
Iodine
Cerium sulfate
1.10-phenanthroline-iron (II)
Diphenyl
15
The oxidation state of Mn in KMnO4 is
2
7
8
5
