The composition of equilibrium mixture does not changed by ___.
Anonymous Quiz
13%
A. Temperature
14%
B. Pressure
6%
C. Concentration
67%
D. Catalyst
❤3
What is the reaction proceeding to the right called?
Anonymous Quiz
83%
A. Forward
12%
B. Reverse
2%
C. Backward
3%
D. Reversible
❤4
The reversible reaction is carried out in the ___ to achieve dynamic equilibrium.
Anonymous Quiz
7%
A. An open system only
75%
B. A closed system only
15%
C. Both open and closed system
3%
D. Air
❤2😢1
Increasing order of pH of the given solution is
Anonymous Quiz
37%
A. Ammonia< ethanoic acid< sodium hydroxide< nitric acid
47%
B. Nitric acid< ethanoic acid< ammonia< sodium hydroxide
16%
C. Nitric acid< ethanoic acid< sodium hydroxide< ammonia
❤6
❤4
❤3
Sodium carbonate has an acidity of ___.
Anonymous Quiz
33%
A. One
47%
B. Two
17%
C. Three
3%
D. Four
❤2🍓1
The proton donating property of a substance is called protogenic property.
Anonymous Quiz
72%
True
28%
False
❤4😭2
❤4
If Kb for the anion is smaller than Ka for the cation, then the solution must be acidic.
Anonymous Quiz
73%
True
27%
False
❤3
❤2😭1
❤4
❤3👎1
The neutral atoms of most of the transition elements have an essential electronic configuration of ___.
Anonymous Quiz
68%
A. (n-1)d ¹–¹⁰ ns¹–²
32%
B. (n-1)d
❤3
Manganese is also used for spacecraft, ships and marine equipment.
Anonymous Quiz
44%
True
56%
False
❤3
Degradation of pesticides can occur after application on the farm.
Anonymous Quiz
78%
True
22%
False
❤3
❤2
Phosphorus can be found in a gaseous state in the biogeochemical cycle.
Anonymous Quiz
57%
True
43%
False
❤3
❤3
❤4
Sulphuric acid may also be produced from dimethyl sulphide emitted to the atmosphere by plankton species.
Anonymous Quiz
78%
True
22%
False
❤3