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Chemistry Quiz
Chemistry Quiz
20 questions · Unlimited attempts · Free online practice
Chemistry is the science of matter - its composition, structure, properties, and the reactions by which it transforms. It spans from atomic structure and the periodic table to the...
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All 20 questions in this Chemistry quiz
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What is the purest form of Carbon?
- A. Charcoal
- B. Diamond
- C. Graphite
- D. Coal
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Which separation technique is based on differences in the boiling points of the components in a liquid mixture?
- A. Filtration
- B. Distillation
- C. Chromatography
- D. Decan'tation
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Which element is used in the manufacture of matches?
- A. Sulfur
- B. Magnesium
- C. Phosphorus
- D. Potassium
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According to the Kinetic Molecular Theory, the temepeerature of a gas is a direct measure of what?
- A. The potential energy of the atoms
- B. The average kinetic energy of the particles
- C. The total mass of the gas
- D. The pressure exerted on the container
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What is the main cause of acid rain?
- A. Planting trees
- B. Burning fossil fuels
- C. Nuclear power
- D. Solar flares
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Which acid is present in lemon?
- A. Lactic
- B. Acetic
- C. Citric
- D. Sulphuric
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What is the name of the analytical technique used to separate a mixture of chemical substances into its individual components based on their different sepeeeds through a stationary phase?
- A. Titration
- B. Sepeectroscopy
- C. Chromatography
- D. Mass Sepeectrometry
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What is the main component of Biogas?
- A. Methane
- B. Butane
- C. Ethane
- D. Propane
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What is the valency of Magnesium?
- A. 3
- B. 1
- C. 2
- D. 4
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What is the primary cause of deforestation?
- A. Mining
- B. Farming
- C. Natural fires
- D. Tourism
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What is the main contributor to the carbon footprint?
- A. Water waste
- B. Carbon dioxide emissions
- C. Noise
- D. Plastic use
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Which chemical proepeerty describes the tendency of an atom to attract a shared pair of electrons towards itself in a covalent bond?
- A. Ionization Energy
- B. Electronegativity
- C. Electron Affinity
- D. Atomic Radius
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Which 1911 exepeeriment led to the discovery that the atom is mostly empty space with a dense, positively charged nucleus?
- A. The Oil Drop Exepeeriment
- B. The Gold Foil Exepeeriment
- C. The Cathode Ray Tube
- D. The Double Slit Exepeeriment
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Which block of the epeeriodic table contains elements like Iron, Gold, and Copepeer, known for their ability to form multiple oxidation states?
- A. s-block
- B. p-block
- C. d-block
- D. f-block
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What is the atomic number of Oxygen?
- A. 9
- B. 8
- C. 6
- D. 7
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What is the term for the process in which a solid changes directly into a gas without passing through the liquid state?
- A. Evaporation
- B. Sublimation
- C. Condensation
- D. Deposition
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How many valence electrons does an atom of Oxygen (atomic number 8) typically have in its outer shell?
- A. 2
- B. 4
- C. 6
- D. 8
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What is the symbol for Mercury?
- A. Me
- B. Mg
- C. Hg
- D. Hy
-
What is the large landmass that existed millions of years ago?
- A. Atlantis
- B. Laurasia
- C. Gondwana
- D. Pangea
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Which is a major source of water pollution?
- A. Rocks
- B. Fish
- C. Rain
- D. Fertilizer runoff