Basic Chemistry Concepts Quiz - Learn Fundamental Chemistry

Question 1 of 39

What is the chemical symbol for gold?

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Question 2 of 39

Which of the following elements is a noble gas?

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Oxygen

Nitrogen

Neon

Hydrogen

Question 3 of 39

What is the pH value of pure water at 25°C?

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Question 4 of 39

Which type of bond is formed by the sharing of electron pairs between atoms?

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Ionic bond

Covalent bond

Metallic bond

Hydrogen bond

Question 5 of 39

What is the main component of natural gas?

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Ethylene

Methane

Propane

Butane

Question 6 of 39

Which element is commonly used in batteries due to its high reactivity?

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Lithium

Calcium

Sodium

Magnesium

Question 7 of 39

What is the atomic number of carbon?

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Question 8 of 39

Which of the following is a diatomic molecule?

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Oxygen

Carbon dioxide

Water

Ammonia

Question 9 of 39

What type of reaction occurs when an acid reacts with a base?

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Combustion

Synthesis

Neutralization

Decomposition

Question 10 of 39

Which of these elements is a metalloid?

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Aluminum

Silicon

Sulfur

Chlorine

Question 11 of 39

What is the common name for the compound H2O?

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Hydrogen peroxide

Water

Hydrochloric acid

Ammonia

Question 12 of 39

What is the molecular formula for glucose?

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C6H12O6

C5H10O5

C6H14O6

C6H12O5

Question 13 of 39

Which gas is produced when an acid reacts with a metal?

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Oxygen

Hydrogen

Nitrogen

Carbon dioxide

Question 14 of 39

What is the process of a substance changing directly from a solid to a gas called?

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Condensation

Sublimation

Evaporation

Fusion

Question 15 of 39

Which of the following elements is essential for the formation of amino acids?

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Sulfur

Potassium

Nitrogen

Calcium

Question 16 of 39

What is the primary use of helium?

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Fuel in rockets

Cooling superconductors

Making plastic

As a fertilizer

Question 17 of 39

Which of the following compounds is known as table salt?

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Sodium chloride

Potassium iodide

Calcium carbonate

Magnesium sulfate

Question 18 of 39

What is the chemical formula for ozone?

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CO2

N2O

Question 19 of 39

What type of bond is present in a water molecule?

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Ionic bond

Metallic bond

Covalent bond

Hydrogen bond

Question 20 of 39

Which of the following is an example of a homogeneous mixture?

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Salad

Sand and salt

Salt water

Fruit punch

Question 21 of 39

What is the most abundant gas in the Earth's atmosphere?

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Oxygen

Carbon dioxide

Nitrogen

Argon

Question 22 of 39

Which element is commonly used in incandescent light bulbs?

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Tungsten

Aluminum

Copper

Zinc

Question 23 of 39

Which of the following acids is found in citrus fruits?

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Acetic acid

Citric acid

Lactic acid

Sulfuric acid

Question 24 of 39

What is the main component of the air we breathe?

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Oxygen

Nitrogen

Carbon dioxide

Argon

Question 25 of 39

What type of reaction is combustion?

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Exothermic

Endothermic

Redox

Decomposition

Question 26 of 39

Which of the following elements is a transition metal?

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Scandium

Boron

Oxygen

Sulfur

Question 27 of 39

What is the term for a solution that contains a high concentration of solute?

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Dilute

Saturated

Unsaturated

Supersaturated

Question 28 of 39

Which compound is commonly used as a disinfectant?

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Sodium bicarbonate

Hydrogen peroxide

Ethanol

Sodium chloride

Question 29 of 39

What is the name of the process where liquid water turns into vapor?

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Sublimation

Condensation

Evaporation

Freezing

Question 30 of 39

Which of these is a property of metals?

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Brittleness

Poor conductors of heat

Malleability

Dull appearance

Question 31 of 39

Which type of reaction involves the loss of electrons?

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Reduction

Oxidation

Neutralization

Hydrolysis

Question 32 of 39

What is the name of the scientist who developed the periodic table of elements?

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John Dalton

Dmitri Mendeleev

Marie Curie

Robert Boyle

Question 33 of 39

What is the term for a substance that speeds up a chemical reaction without being consumed?

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Catalyst

Reagent

Solvent

Buffer

Question 34 of 39

What is the main difference between an ionic and a covalent bond?

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Ionic bonds involve electron sharing, covalent bonds involve electron transfer

Ionic bonds involve electron transfer, covalent bonds involve electron sharing

Ionic bonds are weaker

Covalent bonds are more reactive

Question 35 of 39

What is the molecular weight of water?

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18 g/mol

32 g/mol

44 g/mol

56 g/mol

Question 36 of 39

Which of these is a common use for sulfuric acid?

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Battery acid

Food preservative

Cleaning agent

Agricultural pesticide

Question 37 of 39

What is the phase of matter where particles are close together but can move past each other?

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Solid

Liquid

Gas

Plasma

Question 38 of 39

Which of the following is a strong acid?

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Acetic acid

Citric acid

Hydrochloric acid

Carbonic acid

Question 39 of 39

What is the general name for the group of organic compounds that contain the -OH functional group?

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Aldehydes

Ketones

Alcohols

Ethers

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