
Identification of Substances
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Medium
Şeyma YOL
Used 1+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a decomposition reactions ?
KClO3 → KCl + O2
Fe + S → FeS
2HgO → 2Hg + O2
H2CO3 → CO2+H2O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a compound is insoluble in water, different methods should be tried to dissolve it. These methods could not be:
forming soluble complexes
adding water
using redox reactions
changing the pH of the medium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following compounds was not used during the experiment ?
Citric Acid
Washing Soda
Baking Soda
Alka Seltzer
Potassium carbonate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following was not use during the experiment?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a double displacement reactions ?
NaCl + AgNO3 → NaNO3 + AgCl
2KI+Pb(NO3)2→2KNO3+PbI2
Na2CO3 + HCl → NaCl+ H2O + CO2
Zn + 2HCl → ZnCl2 + H2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An indicator used in acid-base titrations. It turns pink in the presence of bases and colorless in the presence of acids or neutrals. What is this compound ?
Sulfuric acid
Sodium Bicarbonate
Phenolphthalein
Vinegar
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