Bonds - Structure - Properties

What type of bond is formed when electrons are shared between two non-metal atoms unequally?

• Ionic

• metallic

• covalent non polar

• covalent polar

Which element has the highest electronegativity?

• sodium

• bromine

• oxygen

• aluminum

Which of the following compounds is molecular?

• NaCl

• CO2

• MgO

• diamond

How do ionic compounds conduct electricity?

• through electrons

• through protons

• through ions

• they dont conduct at all

Which property is NOT characteristic of metallic compounds?

• conduct electricity

• high melting point

• brittle

• Malleable

Which of the following is NOT an example of a giant covalent structure?

• Diamond

• MgCl2

• SiO2

• CaC2

What is the main constituent of graphene?

• carbon atoms in a tetrahedral structure

• Carbon atoms in hexagonal lattice

• Carbon ions

• Graphite sheets

Which compound is likely to have the strongest bond?

• CI

• CCl4

• CF4

• CBr4

Which substance is a good conductor of electricity in the molten state but not in the solid state?

• sodium chloride

• graphite

• brass

• diamond

The substance has a low melting point (30°C), does not conduct electricity, and is a liquid at room temperature

• mercury (Hg)

• ethanol (C2H6O)

• propane gas (C3H6)

• glycose (C6H12O6)