Chemical Compounds Quiz

What is the representative unit of a molecular compound?

• Formula unit of sodium chloride

• Collection of water molecules

• Molecule of water

• Array of sodium ions

Which elements are considered as metalloids?

• H, Li, K, Rb

• B, Si, P, S, Cl

• Og, Mc, Cn, Fl

• Lv, Ts, Nh, Ta

What type of compound is sodium chloride (NaCl)?

• Molecular compound

• Covalent network solid

• Ionic compound

• Metallic compound

What is the boiling point of NaF, N2O, and H2O in order from lowest to highest?

• H2O, NaF, N2O

• H2O, N2O, NaF

• NaF, N2O, H2O

• N2O, H2O, NaF

What is the structure of carbon atoms in diamond called?

• Hexagonal arrays

• Cylindrical tubes

• Hollow ball

• Tetrahedral structure

What is the property of carbon nanotubes?

• Stiffness and hardness

• Low melting point

• Softness

• Moderate electrical conductivity

What is the representative unit for an ionic compound?

• Collection of water molecules

• Array of sodium ions

• Formula unit of sodium chloride

• Molecule of water

What are the elements along the boundary of the periodic table called?

• Metalloids

• Halogens

• Noble gases

• Alkali metals

What type of compound is carbon monoxide (CO)?

• Molecular compound

• Covalent network solid

• Ionic compound

• Metallic compound

What is the boiling point of NaF, N2O, and H2O in order from lowest to highest?

• NaF, N2O, H2O

• H2O, NaF, N2O

• N2O, H2O, NaF

• H2O, N2O, NaF