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Chemistry Quiz

Chemistry · Exam Mode

20 questions · 30 min timer · Results at the end

Chemistry is the science that explains what everything around us is made of and how substances change. From the air we breathe and the water we drink to medicines, food, and modern...

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All 20 questions in this Chemistry quiz

In an electrochemical cell, at which electrode does 'oxidation' (the loss of electrons) always occur?
- A. Cathode
- B. Anode
- C. Salt Bridge
- D. Electrolyte
Which triatomic molecule, found high in the Earth's atmosphere, protects the planet by absorbing most of the Sun's harmful ultraviolet radiation?
- A. O2 (Dioxygen)
- B. O3 (Ozone)
- C. CO2
- D. N2
What is the large landmass that existed millions of years ago?
- A. Atlantis
- B. Laurasia
- C. Gondwana
- D. Pangea
Which element has the atomic number 1?
- A. Carbon
- B. Oxygen
- C. Hydrogen
- D. Helium
Who developed the Three Laws of Motion?
- A. Newton
- B. Einstein
- C. Pascal
- D. Galileo
What is the chemical symbol for Iron?
- A. In
- B. F
- C. Ir
- D. Fe
Which element is used in the manufacture of matches?
- A. Sulfur
- B. Magnesium
- C. Phosphorus
- D. Potassium
Which layer of Earth is composed of liquid iron and nickel?
- A. Mantle
- B. Inner Core
- C. Outer Core
- D. Crust
What is the main component of Biogas?
- A. Methane
- B. Butane
- C. Ethane
- D. Propane
Which nuclear process involves the splitting of a heavy atomic nucleus into two or more smaller nuclei, releasing a massive amount of energy?
- A. Nuclear Fusion
- B. Nuclear Fission
- C. Alpha Decay
- D. Electron Capture
What is the chemical formula for Chalk?
- A. CaO
- B. Ca(OH)2
- C. CaCl2
- D. CaCO3
What is the primary cause of deforestation?
- A. Mining
- B. Farming
- C. Natural fires
- D. Tourism
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
What is the pH of a strong acid?
- A. 1
- B. 7
- C. 14
- D. 10
What is the name for the random, erratic motion of microscopic particles suspended in a fluid, which provided experimental proof of the existence of atoms?
- A. Brownian Motion
- B. Quantum Fluctuations
- C. Osmosis
- D. Capillary Action
When an acid reacts with a base, what are the two typical products of this 'neutralization' reaction?
- A. Oxygen and Sugar
- B. Salt and Water
- C. Carbon Dioxide and Heat
- D. Hydrogen and Metal
Who proposed the first modern atomic theory in the early 1800s, suggesting that all matter is composed of small, indivisible particles called atoms?
- A. J.J. Thomson
- B. John Dalton
- C. Ernest Rutherford
- D. Niels Bohr
Which gas is the primary byproduct of the complete combustion of fossil fuels and is the most significan't human-contributed greenhouse gas?
- A. Methane
- B. Nitrous Oxide
- C. Carbon Dioxide
- D. Ozone
Which acid is found in vinegar?
- A. Formic Acid
- B. Citric Acid
- C. Tartaric Acid
- D. Acetic Acid
Which laboratory technique is used to determine the unknown concentration of a solute in a solution by reacting it with a known concentration of another?
- A. Distillation
- B. Titration
- C. Filtration
- D. Centrifugation

Chemistry Quiz

Chemistry · Exam Mode

Time is up! Quiz Complete!

In an electrochemical cell, at which electrode does 'oxidation' (the loss of electrons) always occur?

Which triatomic molecule, found high in the Earth's atmosphere, protects the planet by absorbing most of the Sun's harmful ultraviolet radiation?

What is the large landmass that existed millions of years ago?

Which element has the atomic number 1?

Who developed the Three Laws of Motion?

What is the chemical symbol for Iron?

Which element is used in the manufacture of matches?

Which layer of Earth is composed of liquid iron and nickel?

What is the main component of Biogas?

Which nuclear process involves the splitting of a heavy atomic nucleus into two or more smaller nuclei, releasing a massive amount of energy?

What is the chemical formula for Chalk?

What is the primary cause of deforestation?

What is the term for the process in which a solid changes directly into a gas without passing through the liquid state?

What is the pH of a strong acid?

What is the name for the random, erratic motion of microscopic particles suspended in a fluid, which provided experimental proof of the existence of atoms?

When an acid reacts with a base, what are the two typical products of this 'neutralization' reaction?

Who proposed the first modern atomic theory in the early 1800s, suggesting that all matter is composed of small, indivisible particles called atoms?

Which gas is the primary byproduct of the complete combustion of fossil fuels and is the most significan't human-contributed greenhouse gas?

Which acid is found in vinegar?

Which laboratory technique is used to determine the unknown concentration of a solute in a solution by reacting it with a known concentration of another?