Post on 05-Jan-2016
Polyatomic Ions
Grade:11 - 12
Subject:Aquatic Science
Date:09/02/2013
1 Which of the following is the formula for nitrate:
A NO3
-
B NO2
-
C NH3
D NH4
+
2 Which of the following is the first chemical waste product formed by the break down of urea/dead organisms/left-over food?
A NH3
B NH4
C NH3
+
D NH4
+
3 Which of the following is the formula for carbonate:
A CO4
3-
B CO2
-
C CO2
D CO3
2-
4 Which of the following is the formula for phosphate:
A PO3
4-
B PO2
4-
C PO4
3-
D PO2
4+
5 The formula for ammonium is:
A NH3
B NH4
C NH3
+
D NH4
+
6 pH is a measurement of the concentration of ______ within a sample.
A hydroxide
B hydronium
C hydrogen chloride
D hydrubnium
7 OH‑ is called:
A Hydroxide
B Hydronium
C Hydrubnium
D Hydrofluorium
8 During the nitrogen cycle, which of the following is the correct order of TAN compounds
A NH3 --> NO3
- --> NO2
-
B NH4
+ --> NO3
- --> NO2
-
C NH3 --> NO2
- --> NO3
-
D NH4
+ --> NO2
- -->NO3
-
9 Which of the following is the formula for nitrite:
A NO3
-
B NO2
-
C NH3
D NH4
+
10 Which of the following is removed from an aquatic system by algae or water plants?
A NO3
-
B NO2
-
C NH3
D NH4
+
11 Which of the following is the formula for ammonia:
A NH3
+
B NH3
-
C NH3
D NH4
+