NEW
Font size
S
M
L
XL
WorksheetsCBRC PreTest Qualitative Chem
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
It is the type of solution that favors the precipitation of silver ammoniacal complex to silver chloride
a)
a. Dilute solution
b)
b. Neutral solution
c)
c. Basic solution
d)
d. Acidic solution
2.
All of the following ions require flame test, EXCEPT:
a)
a. Strontium
b)
b. Calcium
c)
c. Magnesium
d)
d. Barium
3.
It is a precipitating agent used for the separation of calcium ion from the rest of the group 4 cations.
a)
a. Ammonium oxalate
b)
b. Ammonium sulfate
c)
c. Ammonium thiocyanate
d)
d. Ammonium thiosulfate
4.
It is the chemical formula of magnesium hydroxide.
a)
a. MgOHsub2
b)
b. Mg(OH)sub2
c)
c. MgOH
d)
d. Mgsub2OH
5.
It is the type of glass used in the identification of potassium ion.
a)
a. Borosilicate glass
b)
b. Cobalt glass
c)
c. Soda lime glass
d)
d. Soda lime Silica glass
6.
It is also known as the soluble group cations.
a)
a. Group 2
b)
b. Group 4
c)
c. Group 3
d)
d. Group 5
7.
It is the type of acid commonly used in a flame test.
a)
a. A. HCl
b)
b. C. HNOsub3
c)
c. B. Hsub2SOsub4
d)
d. D. CHsub3COOH
8.
Which of the following group 1 anions is not soluble with 3F acetic acid?
a)
a. Arsenate
b)
b. Oxalate
c)
c. Phosphate
d)
d. Sulfite
9.
It is the characteristic color of the arsenic sulfide precipitate.
a)
a. White
b)
b. Yellow
c)
c. Pink
d)
d. Brown
10.
It Is the distinct color of the flame for barium ion
a)
a. Yellow
b)
b. Crimson
c)
c. Green
d)
d. Violet
11.
Which of the following ions belong to group 2 anions?
a)
a. Iodide
b)
b. Chromate
c)
c. Arsenate
d)
d. Thiosulfate
12.
Which of the following is the common oxidation number of the silver ion?
a)
a. +4
b)
b. +3
c)
c. +2
d)
d. +1
13.
It is the type of solution that favors the precipitation of barium sulfate from group 2 anions.
a)
a. Neutral
b)
b. Dilute
c)
c. Acidic
d)
d. Basic
14.
Which of the following describes the positive result of the chromate ion?
a)
a. Formation of a blue precipitate
b)
b. Formation of a yellow precipitate
c)
c. Formation of a brown precipitate
d)
d. Formation of a white precipitate
15.
All of the following ions are group 3 anions, EXCEPT:
a)
a. Sulfite
b)
b. Ferrocyanide
c)
c. Sulfide
d)
d. Ferricyanide
16.
Which of the following ions of group 3 anions will produce the Prussian blue?
a)
a. Ferricyanide
b)
b. Sufite
c)
c. Ferrocyanide
d)
d. Sulfide
17.
Which of the following describes the color of a ferricyanide precipitate upon the addition of Cadmium acetate to a ferricyanide ion.
a)
a. Yellow
b)
b. White
c)
c. Black
d)
d. Orange
18.
It is also known as Miller’s Reagent
a)
a. Ammoniacal silver chloride solution
b)
b. Ammoniacal silver nitrate solution
c)
c. Silver nitrate solution
d)
d. Silver chloride solution
19.
Which of the following ions belong to group 4 anions?
a)
a. Thiocyanate
b)
b. Sulfate
c)
c. Phosphate
d)
d. Chlorate
20.
All of the following group 4 anions are halogens, EXCEPT:
a)
a. Chloride
b)
b. Thiocyanate
c)
c. Iodide
d)
d. Bromide
21.
It is also known as the water-soluble group anions.
a)
a. Group 5
b)
b. Group 1
c)
c. Group 4
d)
d. Group 3
22.
Which of the following ions belong to group 5 anions?
a)
a. Nitrite
b)
b. Arsenite
c)
c. Phosphate
d)
d. Sulfite
23.
Which of the following ions belong to group 1 cations?
a)
a. Mercurous
b)
b. Mercuric
c)
c. Aluminum
d)
d. Cupper
24.
Which of the following describes the correct oxidation number of chlorate ion?
a)
a. -1
b)
b. -3
c)
c. -2
d)
d. -4
25.
Which of the following ions belong to group 2B?
a)
a. Sodium
b)
b. Magnesium
c)
c. Antimony
d)
d. Cadmium
26.
It is a positive result for the identification of Tin from group 2 cations.
a)
a. Gray precipitate
b)
b. Yellow precipitate
c)
c. Brown precipitate
d)
d. Red precipitate
27.
It is a positive result for the identification of mercuric ion from group 2 cations.
a)
a. Red precipitate
b)
b. Brown precipitate
c)
c. Gray precipitate
d)
d. Yellow Precipitate
28.
It is an ion that belongs to group 3 cations.
a)
It is an ion that belongs to group 3 cations.
b)
b. Barium
c)
c. Antimony
d)
d. Calcium
29.
It is a positive result for the identification of aluminum ion from group 3 cations.
a)
a. Brown precipitate
b)
b. Red precipitate
c)
c. Gray precipitate
d)
d. Yellow precipitate
30.
It is a positive result for the identification of cobalt ion from group 3 cations.
a)
a. Formation of a deep red color
b)
b. Formation of a white precipitate
c)
c. Formation of a reddish-purple solution
d)
d. Formation of a blue-green color
Reset
