Exploring Carbon and Its Compounds

What is the atomic number of carbon?

• 5

• 6

• 7

• 12

What is the most common allotrope of carbon?

• Diamond

• Fullerenes

• Graphite

• Amorphous carbon

Name a common compound formed by carbon and oxygen.

• Calcium carbonate (CaCO3)

• Carbon monoxide (CO)

• Carbon disulfide (CS2)

• Carbon dioxide (CO2)

What type of bond is formed between carbon atoms in organic compounds?

• Hydrogen bond

• Ionic bond

• Metallic bond

• Covalent bond

What is the chemical formula for methane?

• C2H6

• CO2

• CH4

• CH3OH

What is the primary component of coal?

• Hydrogen

• Carbon

• Silicon

• Oxygen

What is the process called when carbon compounds are broken down by heat?

• Carbonization

• Pyrolysis

• Fermentation

• Combustion

What is the significance of carbon in biological molecules?

• Carbon is only found in inorganic compounds.

• Carbon is essential for forming the backbone of biological molecules, enabling the complexity and diversity of life.

• Carbon is primarily used for energy storage in cells.

• Carbon is not involved in the structure of proteins.

Name a carbon compound that is a gas at room temperature.

• Ethylene (C2H4)

• Acetylene (C2H2)

• Methane (CH4)

• Carbon dioxide (CO2)

What is the difference between organic and inorganic carbon compounds?

• Organic compounds are always liquid, while inorganic compounds are solid.

• Inorganic compounds contain carbon-hydrogen bonds, while organic compounds do not.

• Organic compounds contain carbon-hydrogen bonds, while inorganic compounds do not.

• Organic compounds are only found in living organisms, while inorganic compounds are found everywhere.