1.
A polar molecule is the one with:
2.
In which of the following compounds does the underlined element have an oxidation number of +2?
3.
Molality of a solution is defined as:
4.
Which of these is a false solution?
5.
According to Raoult's law, which of the following is an ideal solution?
6.
The correct electronic configuration for an element with atomic number 24 is:
7.
What volume of gas is occupied by 1 mole of an ideal gas at standard temperature and pressure (STP)?
8.
Which factor does not affect the rate of a chemical reaction?
9.
All the following may change during a chemical reaction except:
10.
Consider the reaction CO₂(g)+C(s)↔2CO(g), ΔH=+172.5 KJ. The forward reaction is favored by:
11.
The equation that illustrates the wave-particle duality nature of matter is:
12.
Which of the following elements has the highest electronegativity?
13.
Which of the species are dipoles? I. NO₂ II. NH III. NO₃ IV. CNS
14.
What is the empirical formula of a compound that contains 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass?
15.
The state reached by a reaction mixture when the rates of the forward and backward reactions have become equal is known as:
