Essential General Chemistry Concepts
Test your understanding of fundamental chemistry concepts commonly found in college exams
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Quiz Questions & Answers
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Question 1: Which periodic trend shows increasing atomic radius from top to bottom in a group?
Electronegativity
Principal quantum number
Ionization energy
Nuclear charge
Question 2: What happens to gas pressure when you double both volume and temperature (in Kelvin)?
Pressure stays the same
Pressure doubles
Pressure halves
Pressure quadruples
Question 3: Which molecule has the most polar bond?
H-H
H-Cl
H-F
C-H
Question 4: What's the molarity of a solution made by dissolving 40g NaOH in water to make 500mL?
2.0 M
1.0 M
4.0 M
0.5 M
Question 5: What happens to the rate of reaction when temperature increases?
Decreases linearly
Stays constant
Increases exponentially
Increases linearly
Question 6: Which pH indicates the strongest acid?
pH 1
pH 3
pH 5
pH 7
Question 7: In an exothermic reaction, what happens to the surroundings?
They cool down
Nothing changes
They heat up
They stay isolated
Question 8: What's the oxidation state of Cr in Cr2O7²⁻?
+3
+6
+4
+2