Experiment 10
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Hard
aqilah fasihah
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8 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What is the indicator used in this experiment?
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What color do you observed when KIO3 and KI reacted in acidic conditions such as sulphuric acid?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In what conditions you have to add in starch and continue with titration process?
When the solution turns to light yellow after titration
After addition of KI and sulphuric acid in KIO3
When the brown color solution is observed
When the blue color solution is observed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choose the reducing agents in Part B and C.
i. Iodide, I-
ii. Thiosulphate, S2O32-
iii. Iodate, IO3-
iv. Iodine, I2
i and iv
i and ii
ii and iii
iii and iv
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Indicate all color changes in Part B
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Indicate all color changes in Part C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the blue color does not appear when the starch solution is added during titration, what is the next course of action?
Continue with the titration
Stop titration and record final burette reading
Stop titration, discard the sample and redo again
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