Chemistry Test
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1. What is the pH of a neutral solution?
0
7
14
1
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2. Which of the following is a noble gas?
Oxygen
Nitrogen
Helium
Chlorine
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3. What is the formula for sulfuric acid?
HCl
H₂SO₄
HNO₃
CH₃COOH
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4. What type of bond is formed between two nonmetals?
Ionic
Metallic
Covalent
Hydrogen
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5. Which gas is released when acids react with metals?
Oxygen
Hydrogen
Carbon dioxide
Nitrogen
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6. The atomic number of an element represents the number of?
Neutrons
Electrons
Protons
Isotopes
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7. What is the correct electron configuration for an oxygen atom?
1s² 2s² 2p⁴
1s² 2s² 2p⁶
1s² 2s¹ 2p⁵
1s² 2p⁶
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8. Which statement correctly explains Le Chatelier's Principle?
Systems always move toward equilibrium
Equilibrium shifts to counteract changes
Pressure increases reaction rate
Catalysts shift equilibrium
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9. What is the oxidation number of sulfur in H₂SO₄?
+2
+4
+6
0
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10. Which of the following substances is amphoteric?
NaOH
HCl
H₂O
Al(OH)₃
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